* Gene Austin ( 1900 – 1972 ), American singer

* 1900 – Leo Robin, American songwriter and composer ( d. 1984 )

* 1900 – Philippine – American War: Filipino guerrillas launch a surprise attack on U. S. infantry and begin a four-day siege of Catubig, Philippines.

* 1900 – Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.

* 1900 – Casey Jones dies in a train wreck in Vaughn, Mississippi, while trying to make up time on the Cannonball Express.

* 1900 – David Manners, Canadian-American actor ( d. 1998 )

* 1844 – Alfred, Duke of Saxe-Coburg and Gotha ( d. 1900 )

* 1900 – Cecil Howard Green, English-American geophysicist ( d. 2003 )

* 1820 – George Grove, English historian ( d. 1900 )

* 1867 – Ernest Dowson, English poet ( d. 1900 )

* 1984 – Elizabeth Goudge, English writer ( b. 1900 )

* 1900 – Otto Nothling, Australian cricketer and rugby player ( d. 1965 )

* 1900 – The Firestone Tire and Rubber Company is founded.

* 1900 – Ernie Pyle, American journalist ( d. 1945 )

* 1900 – John T. Scopes, American teacher ( d. 1970 )

* 1900 – The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.

* 1900 – Estelle Brody, American actress ( d. 1995 )

* 1900 – The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British.

* 1900 – Olga Baclanova, Russian actress ( d. 1974 )

* 1900 – Colleen Moore, American actress ( d. 1988 )

* 1900 – Gontran de Poncins, French writer and adventurer ( d. 1962 )

* 1900 – Gilbert Ryle, English philosopher ( d. 1976 )

* 1840 – Ferdinand Hamer, Dutch missionary and bishop ( d. 1900 )

* 1900 – Hans Adolf Krebs, German physician and biochemist, Nobel Prize laureate ( d. 1981 )

Several editions featuring Newton's first three stanzas and the verse previously included by Harriet Beecher Stowe in Uncle Tom's Cabin were published by Excell between 1900 and 1910, and his version of " Amazing Grace " became the standard form of the song in American churches.

Among the tournaments in this series is the venerable All-England Championships, first held in 1900, which was once considered the unofficial world championships of the sport.

The first theoretical description of metals was given by Paul Drude in 1900 with the Drude model, which explained electrical and thermal properties by describing a metal as an ideal gas of then-newly discovered electrons.

Establishing the truth or falsehood of the continuum hypothesis is the first of Hilbert's 23 problems presented in the year 1900.

Chromatography, literally " color writing ", was first employed by Russian scientist Mikhail Tsvet in 1900.

Earlier censuses were taken in 1872 ( the first ), 1900, 1920, 1941, 1950, 1960, 1970, 1980, 1991, 2000 and 2010.

Since these first accounts, Bulgarian authorities had organized several population censuses: 1892, 1900, 1905, 1910, 1920, 1926, 1934, 1946, 1956, 1965, 1975, 1985, 1992, 2001 and 2011.

The Russian-born bacteriologist Waldemar Haffkine developed the first cholera vaccine around 1900.

According to a 1965 deposition by Fausto Rodriguez, the Cuba Libre was first mixed at a Cuban bar in August 1900 by a member of the U. S. Signal Corps, referred to as " John Doe ".

1900 is generally said to be the year that cola first came to Cuba, introduced to the island by American troops.

In 1900, Jones studied briefly at William Tilly's Marburg Language Institute in Germany where he was first introduced to phonetics.

In 1877, German physiologist Wilhelm Kühne ( 1837 – 1900 ) first used the term enzyme, which comes from Greek ενζυμον, " in leaven ", to describe this process.

Edward Lippincott Tilton and William A. Boring won the 1897 competition to design the first phase, including the Main Building ( 1897 – 1900 ), Kitchen and Laundry Building ( 1900 – 01 ), Main Powerhouse ( 1900 – 01 ), and the Main Hospital Building ( 1900 – 01 ).

The unit was redefined in terms of the tropical year at 1900. 0 instead of the sidereal year ; and the standard second was defined first as 1 / 31556925. 975 of the tropical year at 1900. 0, and then as the slightly modified fraction 1 / 31556925. 9747 instead, finally being redefined in 1967 / 8 in terms of the cesium atomic clock standard ( see below ).

He acquired his Ph. D. in 1900 after which he took his first school job a Principal in a St. Louis, Missouri Elementary School.

This move away from Essendon, at a time when fans would walk to their local ground, did not go over well with many Essendon people ; and, as a consequence, a new team and club was formed in 1900, unconnected with the first ( although it played in the same colours ), that was based at the Essendon Cricket Ground, and playing in the Victorian Football Association.

The first two shots of Seen Through the Telescope ( 1900 ), with the telescope POV simulated by the circular mask.

There were isolated examples of this very early, and the first of these, Williamson's Attack on a China Mission ( 1900 ) has already been mentioned.

The first international took place in 1895 ( Ireland 3, Wales 0 ) and the International Rules Board was founded in 1900.

* 1900 – Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.

The Continuum hypothesis, introduced by Cantor, was presented by David Hilbert as the first of his twenty-three open problems in his famous address at the 1900 International Congress of Mathematicians in Paris.