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Reference.org
3rd millennium
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<p>In <a href="/facts/Contemporary_history/d4pEP9Gm">contemporary history</a>, the third millennium is the current <a href="/facts/Millennium/8cwS2oUW">millennium</a> in the <i><a href="/facts/Anno_Domini/NmQwnQNj">Anno Domini</a></i> or <a href="/facts/Common_Era/e5DpqUoe">Common Era</a>, under the <a href="/facts/Gregorian_calendar/axJfTXV1">Gregorian calendar</a>. It began on 1 January 2001 (<a href="/facts/Roman_numerals/7BA8nn78">MMI</a>) and will end on 31 December 3000 (<a href="/facts/Roman_numerals/7BA8nn78">MMM</a>), spanning the <a href="/facts/21st_century/0v01MLms">21st</a> to <a href="/facts/30th_century/MYuG4Hzd">30th</a> centuries. </p><p>Ongoing <a href="/facts/Futures_studies/h59ennpW">futures studies</a> seek to understand what will likely continue and what could plausibly change in this period and beyond. </p>