In contemporary history, the third millennium is a period of time that according to official sources, such as the United States Naval Observatory, began on January 1, 2001, and will end on December 31, 3000, of the Gregorian calendar. Stephen Jay Gould argued that it is not possible to decide if the millennium began January 1, 2000, or January 1, 2001. The Associated Press reported that the third millennium began January 1, 2001, but also reported that celebrations in the US were generally more subdued at the beginning of 2001, compared to the beginning of 2000. This is the third period of one thousand years in the Anno Domini or Common Era.
As this millennium is currently in progress, its first two decades, the past 2000s and the current 2010s, are the subject of the historian's attention. The remaining part of the 21st century and longer-term trends are researched in futures studies.
The civilizations in this section are organized according to the UN geoscheme.
The events in this section are organized according to the UN geoscheme.
|21st century||2010 Tunisian revolution
2014 West Africa Ebola virus became the most lethal outbreak of the virus in history
|2001 September 11 attacks
2013 Boston Marathon bombings
|2011 Death of Osama bin Laden, responsible for the September 11 attacks||2013 Ukraine crisis||2013 Same-sex marriage was legalized in New Zealand|
The people in this section are organized according to the UN geoscheme.
|21st century||Nelson Mandela
|George W. Bush
Inventions, discoveries, introductions
|Communication and Technology||Math and Science||Manufacturing||Transportation and
Centuries and decades
|21st century||2000s[note 2]||2010s||2020s||2030s||2040s||2050s||2060s||2070s||2080s||2090s|
- Partially recognised state
- 2000 is generally considered the last year of the 2nd millennium, but there is some dispute.
- United States Naval Observatory, "The 21st Century and the 3rd Millennium:When Did They Begin?" (Washington, DC, June 14, 2011).
- "When and where did the new Millennium officially start, and why?". Royal Observatory Greenwich
- Stephen Jay Gould, Questioning the Millennium: A Rationalist's Guide to a Precisely Arbitrary Countdown (New York: Harmony Books, 1999), ch 2.
- Associated Press, "Y2K It Wasn't, but It Was a Party", Los Angeles Times, January 1, 2001.
- "How Tunisia's revolution began". 2011. Aljazeera. Retrieved 2011-01-26.
- "How much did the September 11 terrorist attack cost America?". 2004. Institute for the Analysis of Global Security. Retrieved 2014-04-30.
- "Boston Marathon Terror Attack Fast Facts". 2014 (CNN Library). Retrieved 2014-11-01.
- "A Look Back At How The Ukraine Crisis Erupted And What To Expect In 2015". 2014. Greg Satell. Retrieved 2014-12-13.
- Mackenzie, Dana (2006-12-22). "The Poincaré Conjecture--Proved". Science (American Association for the Advancement of Science) 314 (5807): 1848–1849. doi:10.1126/science.314.5807.1848. PMID 17185565. ISSN: 0036-8075.
- "Higgs boson-like particle discovery claimed at LHC". BBC News. Retrieved 6 October 2014.