1900

1900 (MCM) was an exceptional common year starting on Monday in the Gregorian calendar and a leap year starting on Saturday in the Julian calendar, the 1900th year of the Common Era (CE) and Anno Domini (AD) designations, .

Due to a leap day in the Julian Calendar, the Gregorian Calendar moved ahead by 13 days.

 Art, music, theatre, literature 
 May 17 – The Wonderful Wizard of Oz by L. Frank Baum is published.

 Events 
 February 9 – The Boers defeat the British at Ladysmith, South Africa.
 The Olympic Games took place in Paris.

 Births 

 January 
 January 1 – Mieczysław Batsch, Polish footballer (d. 1977)
 January 1 – Paola Borboni, Italian actress (d. 1995)

 February 
 February 22 – Luis Buñuel, Spanish director (d. 1983)

 March 
 March 10 – Violet Brown, Jamaican supercentenarian, oldest Jamaican ever (d. 2017)
 March 29 – John McEwen, 18th Prime Minister of Australia (d. 1980)

 April 
 April 5 – Spencer Tracy, American actor (d. 1967)
 April 26 – Charles Richter, American geophysicist and inventor (d. 1985)

 May 
 May 11 - Pridi Banomyong, Prime Minister of Thailand (d. 1983)

 June 
 June 17 – Martin Bormann, Nazi-German politician (d. 1945)

 July 
 July 19 – Arno Breker, German sculptor (d. 1991)

 August 
 August 4 – Queen Elizabeth The Queen Mother, queen of George VI of the United Kingdom (d. 2002)
 August 4 – Nabi Tajima, Japanese supercentenarian, last surviving person born in the 19th century (d. 2018)

 September 
 September 3 – Urho Kekkonen, President of Finland (d. 1986)

 October 
 October 7 – Heinrich Himmler, German Nazi politician (d. 1945)
 October 17 – Jean Arthur, American actress (d. 1991)
 October 20 – Ismail al-Azhari, President of Sudan (d. 1969)
 October 21 – Srinagarindra, Queen Mother of Thailand (d. 1995)
 October 26 – Ibrahim Abboud, President of Sudan (d. 1983)

 November 
 November 14 – Aaron Copland, American composer (d. 1990)

 December 
 December 6 – Agnes Moorehead, American actress (d. 1974)

 Deaths 
 June 5 – Stephen Crane, American writer (b. 1871)
 August 25 – Friedrich Nietzsche, German philosopher and writer (b. 1844)
 November 22 – Sir Arthur Sullivan. English composer (b. 1842)
 November 30 – Oscar Wilde, Irish writer (b. 1854)