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Clockwise from top-left: Facebook, originally called TheFacebook, is launched by Mark Zuckerberg; the 2004 transit of Venus, the first such occurrence since 1882; NASA lands the Opportunity Rover on Mars; the 2004 Summer Olympics are held in Athens; Al-Qaeda bombs multiple trains in Madrid, killing 193 people; the European Union adds 10 new member-states; 333 people are killed in the Beslan school siege, carried out by Chechen terrorists; a massive megathrust earthquake off the coast of Sumatra and the resultant tsunami kill over 227,000 people—one of the worst natural disasters in recorded history.
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| 2004 by topic: |
| Arts |
| Animation (Anime) – Architecture – Comics – Film (Horror, Science fiction) – Literature (Poetry) – Music (Classical, Country, Hip hop, Jazz, Latin, Metal, Rock, UK, US, Korea) – Radio – Photo – Television – Video games |
| Politics and government |
| Elections – International leaders – Sovereign states Sovereign state leaders – Territorial governors |
| Science and technology |
| Archaeology – Biotechnology – Computing – Palaeontology – Quantum computing and communication – Senescence research – Space/Astronomy – Spaceflight – Sustainable energy research |
| Environment and environmental sciences |
| Birding/Ornithology – Climate change – Weather |
| Transportation |
| Aviation – Rail transport – Transportation technology |
| Sports |
| American football – Association football – Athletics (sport) – Badminton – Baseball – Basketball – Chess – Combat sports – Cricket – Cycling – Golf – Ice hockey – Rugby union – Swimming – Tennis – Volleyball |
| By place |
| Afghanistan – Albania – Algeria – Andorra – Angola – Antarctica – Antigua and Barbuda – Argentina – Armenia – Australia – Austria – Azerbaijan – Bangladesh – The Bahamas – Bahrain – Barbados – Belarus – Belgium – Belize – Benin – Bhutan – Bolivia – Bosnia and Herzegovina – Botswana – Brazil – Brunei – Bulgaria – Burkina Faso – Burundi – Cambodia – Cameroon – Canada – Cape Verde – Central African Republic – Chad – Chile – China – Colombia – Costa Rica – Comoros – Congo – D.R. Congo – Croatia – Cuba – Cyprus – Czech Republic – Denmark – Djibouti – Dominica – Dominican Republic – East Timor – Ecuador – Egypt – El Salvador – Eritrea – Estonia – Ethiopia – Eswatini – Equatorial Guinea – Fiji – Finland – France – Gabon – The Gambia – Georgia – Germany – Ghana – Greece – Grenada – Guatemala – Guinea – Guinea-Bissau – Guyana – Haiti – Honduras – Hong Kong – Hungary – Iceland – India – Indonesia – Iran – Iraq – Ireland – Israel – Italy – Ivory Coast – Jamaica – Japan – Jordan – Kazakhstan – Kenya – Kiribati – Kosovo – Kuwait – Kyrgyzstan – Laos – Latvia – Lebanon – Lesotho – Liberia – Liechtenstein – Libya – Lithuania – Luxembourg – Macau – Madagascar – Marshall Islands – Malawi – Malaysia – Maldives – Mali – Malta – Mauritania – Mauritius – Mexico – Micronesia – Moldova – Monaco – Mongolia – Montenegro – Morocco – Mozambique – Myanmar – Nauru – Namibia – Nepal – Netherlands – New Zealand – Nicaragua – Niger – Nigeria – North Korea – North Macedonia – Norway – Oman – Pakistan – Palau – Palestine – Panama – Papua New Guinea – Paraguay – Peru – Philippines – Poland – Portugal – Qatar – Romania – Russia – Rwanda – Saint Kitts and Nevis – Saint Lucia – Saint Vincent and the Grenadines – Samoa – San Marino – São Tomé and Príncipe – Saudi Arabia – Senegal – Serbia – Seychelles – Sierra Leone – Singapore – Slovakia – Slovenia – Somalia – Somaliland – South Africa – Solomon Islands – South Korea – South Sudan – Spain – Sri Lanka – Sudan – Suriname – Sweden – Switzerland – Syria – Taiwan – Tajikistan – Tanzania – Thailand – Togo – Tonga – Trinidad and Tobago – Tunisia – Turkey – Turkmenistan – Tuvalu – Uganda – Ukraine – United Arab Emirates – United Kingdom – United States – Uruguay – Uzbekistan – Vanuatu – Vatican City – Venezuela – Vietnam – Yemen – Zambia – Zimbabwe |
| Other topics |
| Religious leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Works and introductions categories |
| Works – Introductions Works entering the public domain |
Wikimedia Commons has media related to 2004.
2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar, the 2004th year of the Common Era (CE) and Anno Domini (AD) designations, the 4th year of the 3rd millennium and the 21st century, and the 5th year of the 2000s decade.
2004 was designated as an International Year of Rice by the United Nations,[1] and the International Year to Commemorate the Struggle Against Slavery and its Abolition (by UNESCO).[2]
