Emperor Gaozu (born Li Yuan) was the founder of the Tang. He was previously Duke of Tang and governor of Taiyuan, the capital of modern Shanxi, during the collapse of the Sui dynasty (581–618). Li had prestige and military experience, and was a first cousin of Emperor Yang of Sui (their mothers were both one of the Dugu sisters). Li Yuan rose in rebellion in 617, along with his son and his equally militant daughter Princess Pingyang (d. 623), who raised and commanded her own troops. In winter 617, Li Yuan occupied Chang'an, relegated Emperor Yang to the position of Taishang Huang ('retired emperor'), and acted as regent to the puppet child-emperor Yang You. On the news of Emperor Yang's murder by General Yuwen Huaji on June 18, 618, Li Yuan declared himself emperor of the newly founded Tang dynasty.
A palace coup (Shenlong Coup [zh]) on February 20, 705, forced Empress Wu to yield her position on February 22. The next day, her son Zhongzong was restored to power; the Tang was formally restored on March 3. She died soon after. To legitimise her rule, she circulated a document known as the Great Cloud Sutra, which predicted that a reincarnation of the Maitreya Buddha would be a female monarch who would dispel illness, worry, and disaster from the world. She even introduced numerous revised written characters for the language, though they reverted to the original forms after her death. Arguably the most important part of her legacy was diminishing the hegemony of the Northwestern aristocracy, allowing people from other clans and regions of China to become more represented in Chinese politics and government.
The Tang reached its height during Emperor Xuanzong's 44-year reign, which has been characterized as a golden age of economic prosperity and pleasant lifestyles within the imperial court. Xuanzong was seen as a progressive and benevolent ruler, having abolished the death penalty in 747. Previously, all executions had to be approved by the emperor; in 730, there were only 24 executions. Xuanzong bowed to the consensus of his ministers on policy decisions and made efforts to staff government ministries fairly with different political factions. His staunch Confucian chancellor Zhang Jiuling (673–740) worked to reduce deflation and increase the money supply by upholding the use of private coinage, while his aristocratic and technocratic successor Li Linfu (d. 753) favoured government monopoly over the issuance of coinage. After 737, most of Xuanzong's confidence rested in Li Linfu, his long-standing chancellor, who championed a more aggressive foreign policy employing non-Chinese generals. This policy ultimately created the conditions for a massive rebellion against Xuanzong.
With the central government collapsing in authority over the various regions of the empire, it was recorded in 845 that bandits and river pirates in parties of 100 or more began plundering settlements along the Yangtze River with little resistance. In 858, massive floods along the Grand Canal inundated vast tracts of land and terrain of the North China Plain, which drowned tens of thousands of people in the process. The Chinese belief in the Mandate of Heaven granted to the ailing Tang was also challenged when natural disasters led many to believe that the Tang had lost their right to rule. In 873, a disastrous harvest shook the foundations of the empire; in some areas only half of all agricultural produce was gathered, and tens of thousands faced famine and starvation. In the earlier period of the Tang, the central government was able to meet crises in the harvest—from 714 to 719, records show that the Tang government responded effectively to natural disasters by extending the price-regulation granary system throughout the country. The central government was able then to build a large surplus stock of foods to ward off the rising danger of famine and increased agricultural productivity through land reclamation.
Although these natural calamities and rebellions stained the reputation and hampered the effectiveness of the central government, the early 9th century is nonetheless viewed as a period of recovery for the Tang. The government's withdrawal from its role in managing the economy had the unintended effect of stimulating trade, as more markets with fewer bureaucratic restrictions were opened up. By 780, the old grain tax and labour service of the 7th century were replaced by a semi-annual tax paid in cash, signifying the shift to a money economy boosted by the merchant class. Cities in the southern Jiangnan region such as Yangzhou, Suzhou, and Hangzhou prospered the most economically during the late Tang period. The government monopoly on salt production, weakened after the An Lushan rebellion, was placed under the Salt Commission, which became one of the most powerful state agencies, run by capable ministers chosen as specialists. The commission began the practice of selling merchants the rights to buy monopoly salt, which they transported and sold in local markets. In 799, salt accounted for over half of the government's revenues. S. A. M. Adshead writes that this salt tax represents "the first time that an indirect tax, rather than tribute, levies on land or people, or profit from state enterprises such as mines, had been the primary resource of a major state". Even after the power of the central government was in decline after the mid-8th century, it was still able to function and give out imperial orders on a massive scale. The Old Book of Tang (945) recorded that a government decree issued in 828 standardised the use of square-pallet chain pumps for irrigation throughout the country.
Decades after the An Lushan rebellion, the Tang was able to muster enough power to launch offensive military campaigns, including its destruction of the Uyghur Khaganate in Mongolia from 840 to 847. The Tang managed to restore indirect control over former territories as far west as the Hexi Corridor and Dunhuang in Gansu; in 848, the general Zhang Yichao (799–872) managed to wrestle control of the region from the Tibetan Empire during its civil war. Shortly afterwards, Emperor Xuanzong of Tang (r. 846–859) acknowledged Zhang as the protector (防禦使; fángyùshǐ) of Sha Prefecture, and military governor of the new Guiyi Circuit.
During the last two decades of the Tang dynasty, the gradual collapse of central authority led to the rise of the rival military figures Li Keyong and Zhu Wen in northern China. Tang forces had defeated Huang's rebellion with the aid of allied Shatuo, a Turkic people of what is now Shanxi, led by Li Keyong. He was made a jiedushi, and later Prince of Jin, bestowed with the imperial surname Li by the Tang court. Zhu Wen, originally a salt smuggler who served as a lieutenant under the rebel Huang Chao, surrendered to Tang forces. By helping to defeat Huang, he was renamed Zhu Quanzhong ("Zhu of Perfect Loyalty") and granted a rapid series of promotions to military governor of Xuanwu Circuit.
Taizong set out to solve internal problems within the government which had constantly plagued past dynasties. Building upon the Sui legal code, he issued a new legal code that subsequent Chinese dynasties would model theirs upon, as well as neighbouring polities in Vietnam, Korea, and Japan. The earliest law code to survive was established in 653; it was divided into 500 articles specifying different crimes and penalties ranging from ten blows with a light stick, one hundred blows with a heavy rod, exile, penal servitude, or execution. The legal code distinguished different levels of severity in meted punishments when different members of the social and political hierarchy committed the same crime. For example, the severity of punishment was different when a servant or nephew killed a master or an uncle than when a master or uncle killed a servant or nephew.
Although the central and local governments kept an enormous number of records about land property in order to assess taxes, it became common practice in the Tang for literate and affluent people to create their own private documents and signed contracts. These had their own signature and that of a witness and scribe in order to prove in court (if necessary) that their claim to property was legitimate. The prototype of this actually existed since the ancient Han dynasty, while contractual language became even more common and embedded into Chinese literary culture in later dynasties.
Open competition was designed to draw the best talent into government. But perhaps an even greater consideration for the Tang rulers was to avoid imperial dependence on powerful aristocratic families and warlords by recruiting a body of career officials having no family or local power base. The Tang law code ensured equal division of inherited property among legitimate heirs, encouraging social mobility by preventing powerful families from becoming landed nobility through primogeniture. The competition system proved successful, as scholar-officials acquired status in their local communities while developing an esprit de corps that connected them to the imperial court. From Tang times until the end of the Qing dynasty in 1912, scholar-officials served as intermediaries between the people and the government. The potential of a widespread examination system was not fully realised until the succeeding Song dynasty, when the merit-driven scholar official largely shed his aristocratic habits and defined his social status through the examination system.
From the outset, religion played a role in Tang politics. In his bid for power, Li Yuan had attracted a following by claiming descent from the Taoist sage Laozi (fl. 6th century BC). People bidding for office would request the prayers of Buddhist monks, with successful aspirants making donations in return. Before the persecution of Buddhism in the 9th century, Buddhism and Taoism were both accepted. Religion was central in the reign of Emperor Xuanzong (r. 712–756). The Emperor invited Taoist and Buddhist monks and clerics to his court, exalted Laozi with grand titles, wrote commentary on Taoist scriptures, and set up a school to prepare candidates for Taoist examinations. In 726, he called upon the Indian monk Vajrabodhi (671–741) to perform tantric rites to avert a drought. In 742, he personally held the incense burner while patriarch of the Shingon school Amoghavajra (705–774) recited "mystical incantations to secure the victory of Tang forces".
Emperor Xuanzong closely regulated religious finances. Near the beginning of his reign in 713, he liquidated the Inexhaustible Treasury of a prominent Buddhist monastery in Chang'an which had collected vast riches as multitudes of anonymous repentants left money, silk, and treasure at its doors. Although the monastery used its funds generously, the Emperor condemned it for fraudulent banking practices, and distributed its wealth to other Buddhist and Taoist monasteries, and to repair local statues, halls, and bridges. In 714, he forbade Chang'an shops from selling copied Buddhist sutras, giving a monopoly of this trade to the Buddhist clergy.
The Tang government attempted to create an accurate census of the empire's population, mostly for effective taxation and military conscription. The early Tang government established modest grain and cloth taxes on each household, persuading households to register and provide the government with accurate demographic information. In the official census of 609, the population was tallied at 9 million households, about 50 million people, and this number did not increase in the census of 742. Patricia Ebrey writes that nonwithstanding census undercounting, China's population had not grown significantly since the earlier Han dynasty, which recorded 58 million people in 2 AD. Adshead disagrees, estimating about 75 million people by 750.
The 7th and first half of the 8th century are generally considered to be the era in which the Tang reached the zenith of its power. In this period, Tang control extended further west than any previous dynasty, stretching from north Vietnam in the south, to a point north of Kashmir bordering Persia in the west, to northern Korea in the north-east.
By 737, Emperor Xuanzong discarded the policy of conscripting soldiers that were replaced every three years, replacing them with long-service soldiers who were more battle-hardened and efficient. It was more economically feasible as well, since training new recruits and sending them out to the frontier every three years drained the treasury. By the late 7th century, the fubing troops began abandoning military service and the homes provided to them in the equal-field system. The supposed standard of 100 mu of land allotted to each family was in fact decreasing in size in places where population expanded and the wealthy bought up most of the land. Hard-pressed peasants and vagrants were then induced into military service with benefits of exemption from both taxation and corvée labour service, as well as provisions for farmland and dwellings for dependents who accompanied soldiers on the frontier. By 742, the total number of enlisted troops in the Tang armies had risen to about 500,000 men.
In East Asia, Tang military campaigns were less successful elsewhere than in previous imperial Chinese dynasties. Like the emperors of the Sui dynasty before him, Taizong established a military campaign in 644 against the Korean kingdom of Goguryeo in the Goguryeo–Tang War; however, this led to its withdrawal in the first campaign because they failed to overcome the successful defence led by General Yŏn Kaesomun. The Tang entered into the Silla–Tang alliance, the Chinese fought against Baekje and their Yamato Japanese allies in the Battle of Baekgang in August 663, a decisive Tang–Silla victory. The Tang dynasty navy had several different ship types at its disposal to engage in naval warfare, these ships described by Li Quan in his Taipai Yinjing (Canon of the White and Gloomy Planet of War) of 759. The Battle of Baekgang was actually a restoration movement by remnant forces of Baekje, since their kingdom was toppled in 660 by a Tang–Silla invasion, led by Chinese general Su Dingfang and Korean general Kim Yushin (595–673). In another joint invasion with Silla, the Tang army severely weakened the Goguryeo Kingdom in the north by taking out its outer forts in 645. With joint attacks by Silla and Tang armies under commander Li Shiji (594–669), the Kingdom of Goguryeo was destroyed by 668.
Although they were formerly enemies, the Tang accepted officials and generals of Goguryeo into their administration and military, such as the brothers Yŏn Namsaeng (634–679) and Yŏn Namsan (639–701). From 668 to 676, the Tang Empire controlled northern Korea. However, Silla broke the alliance in 671, and began the Silla–Tang War to expel the Tang forces. At the same time the Tang faced threats on its western border when a large Chinese army was defeated by the Tibetans on the Dafei River in 670. By 676, the Tang army was expelled out of Korea by a unified Silla. Following a revolt of the Eastern Turks in 679, the Tang abandoned its Korean campaigns.
Although the Tang had fought the Japanese, they still held cordial relations with Japan. There were numerous Imperial embassies to China from Japan, diplomatic missions that were not halted until 894 by Emperor Uda (r. 887–897), upon persuasion by Sugawara no Michizane (845–903). The Japanese Emperor Tenmu (r. 672–686) even established his conscripted army on that of the Chinese model, based his state ceremonies on the Chinese model, and constructed his palace at Fujiwara on the Chinese model of architecture.
Many Chinese Buddhist monks came to Japan to help further the spread of Buddhism as well. Two 7th-century monks, Zhi Yu and Zhi You, visited the court of Emperor Tenji (r. 661–672), whereupon they presented a gift of a south-pointing chariot that they had crafted. This vehicle employing a differential gear was reproduced in several models for Tenji in 666, as recorded in the Nihon Shoki (720). Japanese monks also visited China; such was the case with Ennin (794–864), who wrote of his travel experiences including travels along the Grand Canal. The Japanese monk Enchin (814–891) stayed in China from 839 to 847, and again from 853 to 858, landing near Fuzhou, Fujian and setting sail for Japan from Taizhou, Zhejiang during his second trip to China.
The Sui and Tang carried out successful military campaigns against the steppe nomads. Chinese foreign policy to the north and west now had to deal with Turkic nomads, who were becoming the most dominant ethnic group in Central Asia. To handle and avoid any threats posed by the Turks, the Sui government repaired fortifications and received their trade and tribute missions. They sent four royal princesses to form heqin marriage alliances with Turkic clan leaders, in 597, 599, 614, and 617. The Sui stirred trouble and conflict among ethnic groups against the Turks. As early as the Sui dynasty, the Turks had become a major militarised force employed by the Chinese. When the Khitans began raiding northeast China in 605, a Chinese general led 20,000 Turks against them, distributing Khitan livestock and women to the Turks as a reward. On two occasions between 635 and 636, Tang royal princesses were married to Turk mercenaries or generals in Chinese service. Throughout the Tang dynasty until the end of 755, there were approximately ten Turkic generals serving under the Tang. While most of the Tang army was made of fubing Chinese conscripts, the majority of the troops led by Turkic generals were of non-Chinese origin, campaigning largely in the western frontier where the presence of fubing troops was low. Some "Turkic" troops were tribalised Han Chinese, a desinicised people.
Civil war in China was almost totally diminished by 626, along with the 628 defeat of the Ordos warlord Liang Shidu; after these internal conflicts, the Tang began an offensive against the Turks. In 630, Tang armies captured areas of the Ordos Desert, modern-day Inner Mongolia province, and southern Mongolia from the Turks. After this military victory, On June 11, 631, Emperor Taizong also sent envoys to the Xueyantuo bearing gold and silk in order to persuade the release of enslaved Chinese prisoners who were captured during the transition from Sui to Tang from the northern frontier; this embassy succeeded in freeing 80,000 Chinese men and women who were then returned to China.
There was great interaction with India, a hub for Buddhist knowledge, with famous travellers such as Xuanzang (d. 664) visiting the South Asian state. After a 17-year trip, Xuanzang managed to bring back valuable Sanskrit texts to be translated into Chinese. There was also a Turkic–Chinese dictionary available for serious scholars and students, while Turkic folk songs gave inspiration to some Chinese poetry. In the interior of China, trade was facilitated by the Grand Canal and the Tang government's rationalisation of the greater canal system that reduced costs of transporting grain and other commodities. The state also managed roughly 32,100 km (19,900 mi) of postal service routes by horse or boat.
Despite the many expatriate European travellers coming into China to live and trade, many travellers, mainly religious monks and missionaries, recorded China's stringent immigrant laws. As the monk Xuanzang and many other monk travellers attested to, there were many government checkpoints along the Silk Road that examined travel permits into the Tang Empire. Furthermore, banditry was a problem along the checkpoints and oasis towns, as Xuanzang also recorded that his group of travellers were assaulted by bandits on multiple occasions.
The Silk Road also affected the art from the period. Horses became a significant symbol of prosperity and power as well as an instrument of military and diplomatic policy. Horses were also revered as a relative of the dragon.
Chinese envoys had been sailing through the Indian Ocean to states of India as early as the 2nd century BC, yet it was during the Tang dynasty that a strong Chinese maritime presence could be found in the Persian Gulf and Red Sea, into Persia, Mesopotamia (sailing up the Euphrates River in modern-day Iraq), Arabia, Egypt, Aksum (Ethiopia), and Somalia in the Horn of Africa.
During the Tang dynasty, thousands of foreign expatriate merchants came and lived in numerous Chinese cities to do business with China, including Persians, Arabs, Hindu Indians, Malays, Bengalis, Sinhalese, Khmers, Chams, Jews and Nestorian Christians of the Near East. In 748, the Buddhist monk Jian Zhen described Guangzhou as a bustling mercantile business center where many large and impressive foreign ships came to dock. He wrote that "many large ships came from Borneo, Persia, Qunglun (Java) ... with ... spices, pearls, and jade piled up mountain high", as written in the Yue Jue Shu (Lost Records of the State of Yue). Relations with the Arabs were often strained: When the imperial government was attempting to quell the An Lushan rebellion, Arab and Persian pirates burned and looted Canton on October 30, 758. The Tang government reacted by shutting the port of Canton down for roughly five decades; thus, foreign vessels docked at Hanoi instead. However, when the port reopened, it continued to thrive. In 851, the Arab merchant Sulaiman al-Tajir observed the manufacturing of porcelain in Guangzhou and admired its transparent quality. He also provided a description of Guangzhou's landmarks, granaries, local government administration, some of its written records, treatment of travellers, along with the use of ceramics, rice, wine, and tea. Their presence ended in the vengeful Guangzhou massacre by the rebel Huang Chao in 878, who purportedly slaughtered thousands regardless of ethnicity. Huang's rebellion was eventually suppressed in 884.
The Chinese engaged in large-scale production for overseas export by at least the time of the Tang. This was proven by the discovery of the Belitung shipwreck, a silt-preserved shipwrecked Arabian dhow in the Gaspar Strait near Belitung, which had 63,000 pieces of Tang ceramics, silver, and gold (including a Changsha bowl inscribed with a date corresponding to 826, roughly confirmed by radiocarbon dating of star anise at the wreck). Beginning in 785, the Chinese began to call regularly at Sufala on the East African coast in order to cut out Arab middlemen, with various contemporary Chinese sources giving detailed descriptions of trade in Africa. The official and geographer Jia Dan (730–805) wrote of two common sea trade routes in his day: one from the coast of the Bohai Sea towards Korea and another from Guangzhou through Malacca towards the Nicobar Islands, Sri Lanka and India, the eastern and northern shores of the Arabian Sea to the Euphrates River. In 863, the Chinese author Duan Chengshi (d. 863) provided a detailed description of the slave trade, ivory trade, and ambergris trade in a country called Bobali, which historians suggest was Berbera in Somalia. In Fustat, Egypt, the fame of Chinese ceramics there led to an enormous demand for Chinese goods; hence Chinese often travelled there. From this time period, the Arab merchant Shulama once wrote of his admiration for Chinese seafaring junks, but noted that their draft was too deep for them to enter the Euphrates River, which forced them to ferry passengers and cargo in small boats. Shulama also noted that Chinese ships were often very large, with capacities up to 700 passengers.
Although Chang'an had served as the capital during the earlier Han and Jin dynasties, after subsequent destruction in warfare, it was the Sui dynasty model that comprised the Tang-era capital. The roughly square dimensions of the city had 10 km (6.2 mi) of outer walls running east to west, and more than 8 km (5.0 mi) of outer walls running north to south. The royal palace, the Taiji Palace, stood north of the city's central axis. From the large Mingde Gates mid-center on the main southern wall, a wide city avenue stretched all the way north to the central administrative city, behind which was the Chentian Gate of the royal palace, or Imperial City. Intersecting this were fourteen main streets running east to west, while eleven main streets ran north to south. These main intersecting roads formed 108 rectangular wards with walls and four gates each, each filled with multiple city blocks. The city was made famous for this checkerboard pattern of main roads with walled and gated districts, its layout even mentioned in one of Du Fu's poems. During the Heian period, cities like Heian-kyō (present-day Kyoto) were arranged in the checkerboard street in accordance with traditional geomancy, following the Chang'an model. Of Chang'an's 108 wards, two were designated as government-supervised markets, and other space reserved for temples, gardens, ponds, etc. Throughout the entire city, there were 111 Buddhist monasteries, 41 Taoist abbeys, 38 family shrines, 2 official temples, 7 churches of foreign religions, 10 city wards with provincial transmission offices, 12 major inns, and 6 graveyards. Some city wards were literally filled with open public playing fields or the backyards of lavish mansions for playing horse polo and cuju (Chinese soccer). In 662, Emperor Gaozong moved the imperial court to the Daming Palace, which became the political center of the empire and served as the royal residence of the Tang emperors for more than 220 years.
The Tang capital was the largest city in the world at its time, with the population of its wards and suburban countryside reaching two million inhabitants. The Tang capital was very cosmopolitan, with ethnicities of Persia, Central Asia, Japan, Korea, Vietnam, Tibet, India, and many other places living within. Naturally, with this plethora of different ethnicities living in Chang'an, there were also many different practised religions, such as Buddhism, Nestorian Christianity, and Zoroastrianism, among others. With the open access to China that the Silk Road to the west facilitated, many foreign settlers were able to move east to China, while the city of Chang'an itself had about 25,000 foreigners living within. Exotic green-eyed, blond-haired Tocharian ladies serving wine in agate and amber cups, singing, and dancing at taverns attracted customers. If a foreigner in China pursued a Chinese woman for marriage, he was required to stay in China and was unable to take his bride back to his homeland, as stated in a law passed in 628 to protect women from temporary marriages with foreign envoys. Several laws enforcing segregation of foreigners from Chinese were passed during the Tang. In 779, the Tang issued an edict which forced Uyghurs in the capital, Chang'an, to wear their ethnic dress, stopped them from marrying Chinese females, and banned them from passing off as Chinese.
Chang'an was the center of the central government, the home of the imperial family, and was filled with splendor and wealth. However, incidentally it was not the economic hub during the Tang dynasty. The city of Yangzhou along the Grand Canal and close to the Yangtze was the greatest economic center during the Tang.
Yangzhou was the headquarters for the Tang government's salt monopoly, and was the greatest industrial center of China. It acted as a midpoint in shipping of foreign goods to be distributed to the major cities of the north. Much like the seaport of Guangzhou in the south, Yangzhou had thousands of foreign traders from across Asia.
Short story fiction and tales were also popular during the Tang, one of the more famous ones being Yingying's Biography by Yuan Zhen (779–831), which was widely circulated in his own time and by the Yuan dynasty (1279–1368) became the basis for Chinese opera. Timothy C. Wong places this story within the wider context of Tang love tales, which often share the plot designs of quick passion, inescapable societal pressure leading to the abandonment of romance, followed by a period of melancholy. Wong states that this scheme lacks the undying vows and total self-commitment to love found in Western romances such as Romeo and Juliet, but that underlying traditional Chinese values of indivisibility of self from one's environment, including from society, served to create the necessary fictional device of romantic tension. In addition, Tang literature often discussed gender expression. Literary texts such as "Tiandi yinyang jiaohuan dale fu" and "You xianku" depicted how the Tang nobility emphasized Taoist sexology. Many male Tang poets and literati conveyed their love for male companions when they perceived their wives—often illiterate—to be incapable of understanding their troubles.
The prominent status of Buddhism in Chinese culture began to decline as the dynasty and central government declined as well during the late 8th century to 9th century. Buddhist convents and temples that were exempt from state taxes beforehand were targeted by the state for taxation. In 845, Emperor Wuzong finally shut down 4,600 Buddhist monasteries along with 40,000 temples and shrines, forcing 260,000 Buddhist monks and nuns to return to secular] life; this episode would later be dubbed one of the Four Buddhist Persecutions in China. Although the ban was lifted just a few years after, Buddhism never regained its once dominant status in Chinese culture. This situation also came about through a revival of interest in native Chinese philosophies such as Confucianism and Taoism. Han Yu (786–824)—who Arthur F. Wright stated was a "brilliant polemicist and ardent xenophobe"—was one of the first men of the Tang to denounce Buddhism. Although his contemporaries found him crude and obnoxious, he foreshadowed the later persecution of Buddhism in the Tang, as well as the revival of Confucian theory with the rise of Neo-Confucianism of the Song dynasty. Nonetheless, Chán Buddhism gained popularity among the educated elite. There were also many famous Chan monks from the Tang era, such as Mazu Daoyi, Baizhang, and Huangbo Xiyun. The sect of Pure Land Buddhism initiated by the Chinese monk Huiyuan (334–416) was also just as popular as Chan Buddhism during the Tang.
Rivaling Buddhism was Taoism, a native Chinese philosophical and religious belief system that found its roots in the Tao Te Ching and the Zhuangzi. The ruling Li family of the Tang dynasty actually claimed descent from Laozi, traditionally credited as the author of the Tao Te Ching. On numerous occasions where Tang princes would become crown prince or Tang princesses taking vows as Taoist priestesses, their lavish former mansions would be converted into Taoist abbeys and places of worship. Many Taoists were associated with alchemy in their pursuits to find an elixir of immortality and a means to create gold from concocted mixtures of many other elements. Although they never achieved their goals in either of these futile pursuits, they did contribute to the discovery of new metal alloys, porcelain products, and new dyes. The historian Joseph Needham labelled the work of the Taoist alchemists as "protoscience rather than pseudoscience". However, the close connection between Taoism and alchemy, which some sinologists have asserted, is refuted by Nathan Sivin, who states that alchemy was just as prominent (if not more so) in the secular sphere and practised more often by laymen.
More than earlier periods, the Tang era was renowned for the time reserved for leisure activities, especially among the upper classes. Many outdoor sports and activities were enjoyed during the Tang, including archery, hunting, horse polo, cuju (soccer), cockfighting, and even tug of war. Government officials were granted vacations during their tenure in office. Officials were granted 30 days off every three years to visit their parents if they lived 1,000 mi (1,600 km) away, or 15 days off if the parents lived more than 167 mi (269 km) away (travel time not included). Officials were granted nine days of vacation time for weddings of a son or daughter, and either five, three, or one days/day off for the nuptials of close relatives (travel time not included). Officials also received a total of three days off for their son's capping initiation rite into manhood, and one day off for the ceremony of initiation rite of a close relative's son. Among the royalty, the tradition of male homosexuality of Imperial China continued to exist, where eunuchs were often the royalty’s male favorites, both due to their appearance and talents.
In general, garments were made from silk, wool, or linen depending on your social status and what you could afford. Furthermore, there were laws that specified what kinds of clothing could be worn by whom. The color of the clothing also indicated rank. During this period, China's power, culture, economy, and influence were thriving. As a result, women could afford to wear loose-fitting, wide-sleeved garments. Even lower-class women's robes had sleeves four to five feet wide.[better source needed]
Concepts of women's social rights and social status during the Tang era were notably liberal-minded for the period. However, this was largely reserved for urban women of elite status, as men and women in the rural countryside laboured hard in their different set of tasks; with wives and daughters responsible for more domestic tasks of weaving textiles and rearing of silk worms, while men tended to farming in the fields. There were many women in the Tang era who gained access to religious authority by taking vows as Taoist priestesses.
It was fashionable for women to have full figures; men enjoyed the presence of assertive, active women. The foreign horse-riding sport of polo from Persia became a wildly popular trend among the Chinese elite, and women often played the sport (as glazed earthenware figurines from the time period portray). The preferred hairstyle for women was to bunch their hair up like "an elaborate edifice above the forehead", while affluent ladies wore extravagant head ornaments, combs, pearl necklaces, face powders, and perfumes. A 671 law attempted to force women to wear hats with veils again in order to promote decency, but these laws were ignored as some women started wearing caps and even no hats at all, as well as men's riding clothes and boots, and tight-sleeved bodices.
In ancient times, the Chinese had outlined the five most basic foodstuffs known as the five grains: sesamum, legumes, wheat, panicled millet, and glutinous millet. The Ming dynasty encyclopedist Song Yingxing noted that rice was not counted among the five grains from the time of the legendary and deified Chinese sage Shennong (the existence of whom Yingxing wrote was "an uncertain matter") into the 2nd millennium BC, because the properly wet and humid climate in southern China for growing rice was not yet fully settled or cultivated by the Chinese. Song Yingxing also noted that in the Ming dynasty, seven tenths of civilians' food was rice. During the Tang dynasty rice was not only the most important staple in southern China, but had also become popular in the north where central authority resided.
During the Tang dynasty, wheat replaced the position of millet and became the main staple crop. As a consequence, wheat cake shared a considerable amount in the staple of Tang. There were four main kinds of cake: steamed cake, boiled cake, pancake, and Hu cake. Steamed cake was consumed commonly by both civilians and aristocrats. Like rougamo in modern Chinese cuisine, steamed cake was usually stuffed with meat and vegetables. Shops and packmen regularly sold inexpensive steamed cake on the streets of Chang’an. Boiled cake was the staple of the Northern Dynasties, and it kept its popularity in the Tang dynasty. It included a wide variety of dishes similar to modern wonton, noodles, and many other kinds of food that soak wheat in water. While aristocrats favoured wonton, civilians usually consumed noodles and noodle slice soup that were easier to produce. Pancakes was rare in China before the Tang, when it gained popularity. Food shops in Tang cities such as Chang'an commonly sold both pancakes and dumplings. Hu cake was extremely popular during the Tang. Hu cake was toasted in the oven, covered with sesame seeds, and served at taverns, inns and shops. Japanese Buddhist monk Ennin observed that Hu cake was popular among all of China's civilians.
During the Tang, the many common foodstuffs and cooking ingredients in addition to those already listed were barley, garlic, salt, turnips, soybeans, pears, apricots, peaches, apples, pomegranates, jujubes, rhubarb, hazelnuts, pine nuts, chestnuts, walnuts, yams, taro, etc. The various meats that were consumed included pork, chicken, lamb (especially preferred in the north), sea otter, bear (which was hard to catch, but there were recipes for steamed, boiled, and marinated bear), and even Bactrian camels. In the south along the coast meat from seafood was by default the most common, as the Chinese enjoyed eating cooked jellyfish with cinnamon, Sichuan pepper, cardamom, and ginger, as well as oysters with wine, fried squid with ginger and vinegar, horseshoe crabs and red swimming crabs, shrimp and pufferfish, which the Chinese called "river piglet".
Methods of food preservation were important, and practised throughout China. The common people used simple methods of preservation, such as digging deep ditches and trenches, brining, and salting their foods. The emperor had large ice pits located in the parks in and around Chang'an for preserving food, while the wealthy and elite had their own smaller ice pits. Each year the emperor had labourers carve 1000 blocks of ice from frozen creeks in mountain valleys, each block with dimensions 0.9 m × 0.9 m × 1.1 m (2 ft 11 in × 2 ft 11 in × 3 ft 7 in) . Frozen delicacies such as chilled melon were enjoyed during the summer.
Technology during the Tang period was built also upon the precedents of the past. Previous advancements in clockworks and timekeeping included the mechanical gear systems of Zhang Heng (78–139) and Ma Jun (fl. 3rd century), which gave the Tang mathematician, mechanical engineer, astronomer, and monk Yi Xing (683–727) inspiration when he invented the world's first clockwork escapement mechanism in 725. This was used alongside a water clock and waterwheel to power a rotating armillary sphere in representation of astronomical observation. Yi Xing's device also had a mechanically timed bell that was struck automatically every hour, and a drum that was struck automatically every quarter-hour; essentially, a striking clock. Yi Xing's astronomical clock and water-powered armillary sphere became well known throughout the country, since students attempting to pass the imperial examinations by 730 had to write an essay on the device as an exam requirement. However, the most common type of public and palace timekeeping device was the inflow clepsydra. Its design was improved c. 610 by the Sui dynasty engineers Geng Xun and Yuwen Kai. They provided a steelyard balance that allowed seasonal adjustment in the pressure head of the compensating tank and could then control the rate of flow for different lengths of day and night.
There were many other mechanical inventions during the Tang era. These included a 0.9 m (2 ft 11 in) tall mechanical wine server created during the early 8th century in the shape of an artificial mountain, carved out of iron and rested on a lacquered-wooden tortoise frame. This intricate device used a hydraulic pump that siphoned wine out of metal dragon-headed faucets, as well as tilting bowls that were timed to dip wine down, by force of gravity when filled, into an artificial lake that had intricate iron leaves popping up as trays for placing party treats. Furthermore, as the historian Charles Benn describes it:
Yet the use of a teasing mechanical puppet in this wine-serving device was not exactly a novel invention of the Tang, since the use of mechanical puppets in China date to the Qin dynasty (221–206 BC). In the 3rd century Ma Jun had an entire mechanical puppet theatre operated by the rotation of a waterwheel. There are many stories of automatons used in the Tang, including general Yang Wulian's wooden statue of a monk who stretched his hands out to collect contributions; when the number of coins reached a certain weight, the mechanical figure moved his arms to deposit them in a satchel. This weight-and-lever mechanism was exactly like Heron's penny slot machine. Other devices included one by Wang Ju, whose "wooden otter" could allegedly catch fish; Needham suspects a spring trap of some kind was employed here.
The Chinese of the Tang era were interested in the benefits of officially classifying the medicines used in pharmacology. In 657, Emperor Gaozong of Tang (r. 649–683) commissioned an official materia medica, complete with text and illustrated drawings for 833 different medicinal substances. In addition to compiling pharmacopeias, the Tang fostered learning in medicine by upholding imperial medical colleges, state examinations for doctors, and publishing forensic manuals for physicians. Authors of medicine in the Tang include Zhen Chuan (d. 643) and Sun Simiao (581–682); the former was the first to identify in writing that patients with diabetes had an excess of sugar in their urine, and the latter was the first to recognise that diabetic patients should avoid consuming alcohol and starchy foods. As written by Zhen Chuan and others in the Tang, the thyroid glands of sheep and pigs were successfully used to treat goitres; thyroid extracts were not used to treat patients with goitre in the West until 1890. The use of the dental amalgam, manufactured from tin and silver, was first introduced in the medical text Xinxiu bencao written by Su Gong in 659.
Chinese scientists of the Tang period employed complex chemical formulas for an array of different purposes, often found through experiments of alchemy. These included a waterproof and dust-repelling cream or varnish for clothes and weapons, fireproof cement for glass and porcelain wares, a waterproof cream applied to silk clothes of underwater divers, a cream designated for polishing bronze mirrors, and many other useful formulas. Porcelain was invented in China during the Tang, although many types of glazed ceramics preceded it.
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The polite form Dà Táng (大唐, lit. 'Great Tang') was often used, such as in the names of books of the period.[8]
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During the rule of the Tang, the world population grew from approximately 190 million to approximately 240 million, a difference of 50 million. See also medieval demography. /wiki/Medieval_demography
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From right to left are representatives hailing from Lu (魯國)—a reference to the Eastern Wei—Rouran (芮芮國), Persia (波斯國), Baekje (百濟國), Kumedh (胡密丹), Baiti (白題國), Mohe people (靺國), Central India (中天竺), Sri Lanka (獅子國), Northern India (北天竺), Tashkurgan (謁盤陀), Wuxing of the Chouchi ((武興國), Kucha ((龜茲國), Japan (倭國), Goguryeo (高麗國), Khotan (于闐國), Silla (新羅國), Dangchang (宕昌國), Langkasuka (狼牙修), Dengzhi (鄧至國), Yarkand (周古柯), Kabadiyan (阿跋檀), the "Barbarians of Jianping" (建平蠻), and Nudan (女蜑國). /wiki/Lu_(state)
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唐·孙棨《北里志》:诸女自幼丐,有或佣其下里贫家。常有不调之徒,潜为渔猎,亦有良家子为其家聘之,以转求厚赂。误陷其中,则无以自脱。初教之歌令,而责之甚急,微涉退怠,则鞭朴备至。Some of these girls were beggars when they were young, and some came from poor families. There were often improper people who secretly sold the girls to brothels. Some girls from the boudoir were married into such families and sold to brothels at high prices. Once they were trapped here, there was no way to get out by themselves. At first, these girls were taught to sing, and then they were quickly reprimanded. If they were a little negligent, they would be whipped with a whip.
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