2004 (MMIV) was a leap year starting on Thursday (dominical letter DC) of the Gregorian calendar, the 2004th year of the Common Era (CE) and Anno Domini (AD) designations, the fourth year of the 3rd millennium, the fourth year of the 21st century, and the fifth year of the 2000s decade.

2004 was designated as:

Events

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The tsunami caused by the December 26, 2004 earthquake strikes Ao Nang, Thailand.

Date unknown

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Nobel Prizes