The Fourth Dynasty of ancient Egypt (notated Dynasty IV) is characterized as a "golden age" of the Old Kingdom of Egypt. Dynasty IV lasted from c. 2613 to c. 2498 BC. It was a time of peace and prosperity as well as one during which trade with other countries is officially documented.
The Fourth Dynasty heralded the height of the pyramid-building age. The peaceful rule of the Third Dynasty allowed artistic expressions to flourish. Building experiments done by King Sneferu led to the evolution of mastaba tombs into the smooth-sided pyramids like those seen on the Giza Plateau. No other period in Egyptian history equaled the accomplishments achieved during the Fourth Dynasty.