1904 is a leap year starting on Friday (link will take you to calendar).
1901 1902 1903 - 1904 - 1905 1906 1907
| Decades: |
1870s 1880s 1890s - 1900s - 1910s 1920s 1930s
| Centuries: |
19th century - 20th century - 21st century
- January 7 - The distress signal "CQD" is established only to be replaced two years later by "SOS."
- February 7 - A fire in Baltimore, Maryland destroys over 1,500 buildings in 30 hours.
- February 8 - Japanese surprise attack on Port Arthur (Lushun) starts Russo-Japanese War
- February 10 – Roger Casement publishes his account of Belgian atrocities in Congo
- February 23 - For $10 million the United States gains control of the Panama Canal Zone.
- March 3 - Kaiser Wilhelm II of Germany becomes the first person to make a political recording of a document, using Thomas Edison's cylinder.
- March 4 - Russo-Japanese War: Russian troops in Korea retreat toward Manchuria followed by 100,000 Japanese troops.
- March 8 – The first tunnel beneath the Hudson River completed
- March 21 – Battle of Chumik Shenko – British under general Francis Younghusband defeat ill-equipped Tibetan troops
- April 8 - Entente Cordiale signed between the UK and France.
- April 8 - Longacre Square in Midtown Manhattan is renamed Times Square after The New York Times.
- April 17 – 10-minute darkness in Wimbledon
- April 18 – Hurricane in Goliad, Texas kills 114
- April 30 - Louisiana Purchase Exposition World's Fair opens in Saint Louis, Missouri (closes December 1)
- May 4 - First Rolls-Royce manufactured
- June 15 - A fire aboard the steamboat General Slocum in New York City's East River kills 1000.
- June 16 - Eugen Schauman assassinates Nikolai Bobrikov, Governor-General of Finland.
- July 21 - Trans-Siberian railway completed
- July 23 - In St. Louis, Missouri, Charles E. Menches invents the ice cream cone during the Louisiana Purchase Exposition.
- August 17 – Japanese infantry charge fails to take Port Arthur
- September 7 - Fire spreads over downtown Baltimore in USA - 1500 buildings destroyed, no known fatalities
- October 27 - First New York City subway line opens; system becomes biggest in United States of America, and one of biggest in world
- November 4 - In Florence, Italy, the Arno River flooded.
- November - Theodore Roosevelt defeats Alton B. Parker in the U.S. presidential election
- November 24 - The first successful caterpillar track is made (it would later revolutionize construction vehicles and land warfare).
- Ismael Montes becomes president of Bolivia
- Herero Wars begin
- Church of Jesus Christ of Latter-day Saints President Joseph F. Smith issues a "Second Manifesto" against polygamy
- [[Gustave Bi�ler]], SOE agent, hero of WW II executed by the Nazis
- Bernard Castro, inventor of the convertible couch
- January 1 - Fazal Ilahi Chaudhry, Pakistani politician, (d. 1982)
- January 5 - Jeane Dixon, astrologer (d. 1997)
- January 10 - Ray Bolger, actor, singer, dancer (d. 1987)
- January 14 - Cecil Beaton, photographer (d. 1980)
- January 18 - Cary Grant, actor (d. 1986)
- January 22 - George Balanchine, choreographer (d. 1983)
- January 26 - Ancel Keys, scientist
- January 29 - Arnold Gehlen, German philosopher (d. 1976)
- January 29 - Luigi Nono, Italian composer (d. 1990)
- February 1 - S. J. Perelman, humorist, author (d. 1979)
- February 4 - MacKinlay Kantor, historian (d. 1977)
- February 5 - Walter Gross, cabaretist (d. 1989)
- February 7 - Ernst Ginsberg, actor and film director (d. 1964)
- February 11 - Henry LaBouisse, head of UNICEF (1965-1979)
- February 11 - Sir Keith Holyoake, New Zealand Prime Minister (1960-1972)
- February 15 Evald Tammlaan, Estonian writer (d. 1945)
- February 16 George F. Kennan, U.S. diplomat who formulated Containment policy towards the Soviet Union.
- February 20 - Aleksei Kosygin, Premier of the Soviet Union (d. 1980)
- February 25 - Adelle Davis, nutritionist, writer (d. 1974)
- February 29 - Jimmy Dorsey, bandleader (d. 1957)
- March 1 - Glenn Miller, bandleader (d. 1944)
- March 2 - Dr. Seuss, author (d. 1991)
- March 7 - Reinhard Heydrich, Nazi official
- March 8 - Victor de Kowa, actor (d. 1973)
- March 6 - Joseph Schmidt, tenor (d. 1942)
- March 7 - Reinhard Heydrich, Nazi official (d. 1942)
- March 20 - B. F. Skinner, behavioral psychologist (d. 1990)
- March 23 - Joan Crawford, actress (d. 1977)
- March 26 - Joseph Campbell, author and expert on mythology (d. 1987)
- March 26 - Xenophon Zolotas, Prime Minister of Greece. (d. 2004)
- March 28 - Werner Bahlsen, biscuit producer (d. 1985)
- April 3 - Sally Rand, dancer (d. 1979)
- April 7 - Ralph Bunche, diplomat, winner of the Nobel Peace Prize (d. 1971)
- April 9 - Sharkey Bonano, jazz musician (d. 1972)
- April 16 - Fifi D'Orsay, actress (d. 1983)
- April 21 - [[Lembit P�rn]], Soviet general
- April 22 - Robert Oppenheimer, physicist (d. 1967)
- April 29 - Karin Luts, Estonian painter (d. 1993)
- May 6 - Harry Martinson, swedish author, winner of the Nobel Prize in literature (d. 1978)
- May 6 - Moshe Feldenkrais, founder of the Feldenkrais Method (d. 1984)
- May 11 - [[Salvador Dal�]], artist (d. 1989)
- May 17 - Jean Gabin, actor (d. 1976)
- May 21 - Fats Waller, pianist (d. 1943)
- May 21 - Robert Montgomery, actor (d. 1981)
- May 27 - Chuhei Nambu, Japanese athlete (d. 1997)
- June 2 - Johnny Weissmuller, American swimmer and actor (d. 1984)
- July 5 - Ernst Mayr, famed Evolutionary biologist and author
- July 12 - Deng Xiaoping, Chinese politician and leader (d. 1997)
- July 13 - Pablo Neruda, poet (d. 1973)
- August 4 - Witold Gombrowicz, Polish novelist and dramatist (d. 1969)
- August 6 - Jean Desses, French couturier (d. 1970)
- August 17 - Leopold Nowak, musicologist (d. 1991)
- August 21 - Count Basie, jazz musician and bandleader (d. 1984)
- August 23 - Gloria Morgan-Vanderbilt, socialite twin (d. 1965)
- August 23 - Thelma Morgan, socialite twin, Viscountess Furness (d. 1970)
- August 28 - Secondo Campini, Italian jet pioneer (d. 1980)
- September 29 - Greer Garson, actress (d. 1996)
- October 25 - Vladimir Peter Tytla, United States animator (d. 1968)
- November 11 - J. H. C. Whitehead, British mathematician (d. 1960)
- November 12 - Jacques Tourneur, director (d. 1977)
- November 14 - Dick Powell, actor and singer (d. 1963)
- November 25 - Lillian Copeland, American athlete (d. 1964)
- November 30 - Clyfford Still, painter (d. 1980)
- January 20 - Dmitri Ivanovich Mendeleev, Russian chemist and inventor of the Periodic table
- May 19 - Auguste Molinier, French historian
- June 4 - George Frederick Phillips, military hero of the Spanish-American War
- July 5 - Abai Kunanbaiuli, Famous Kazakh poet.
- July 14 - Anton Chekhov, Russian playwright and short story writer
- July 22 - Wilson Barrett, actor
- August 6 - Eduard Hanslick, music critic
- August 22 - Kate Chopin, author
- August 25 - Henri Fantin-Latour, painter
- August 29 - Murad V, deposed Ottoman sultan (b. 1840)
- September 26 - John F. Stairs, businessman, statesman
- October 4 - [[Fr�d�ric Bartholdi]], sculptor
- Physics - Lord John William Strutt Rayleigh
- Chemistry - Sir William Ramsay
- Medicine - Ivan Petrovich Pavlov
- Literature - Fr�d�ric Mistral, Jos� Echegaray Y Eizaguirre
- Peace - Institut De Droit Internationalaf:1904
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