1900

For the film, see 1900 (film).

1900 is a common year starting on Monday.

align="center" colspan=2 | Years:
1897 1898 1899 - 1900 - 1901 1902 1903

align="center" colspan=2 | Decades:
1870s 1880s 1890s - 1900s - 1910s 1920s 1930s

align="center" | Centuries:
18th century - 19th century - 20th century

Events

January 1 - Nigeria becomes a British protectorate
January 2 - John Hay announces the Open Door Policy to promote trade with China.
January 2 - Chicago Canal opens.
January 5 - Irish leader John Edward Redmond calls for a revolt against British rule.
January 6 - It is reported that millions are starving in India.
January 6 - Boers attack Ladysmith - over 1000 people killed
January 8 - United States President William McKinley places Alaska under military rule.
January 13 - Kaiser of Germany declares that German is the command language in the German army
January 14 - Premier presentation of opera Tosca in Rome - actors have received death threats and nameless letters.
January 16 - The United States Senate accepts the Anglo-German treaty of 1899 in which the United Kingdom renounced its claims to the Samoan islands.
January 24 - Battle of Spion Kop in Second Boer War
January 24 - The governments in London and Pretoria begin negotiations to end the Boer Wars.
January 27 - Boxer rebellion: Foreign diplomats in Peking China demand that the Boxer rebels be disciplined.
January 29 - The American League of Professional Baseball Clubs is organized in Philadelphia, Pennsylvania with 8 founding teams.
January 30 - United Kingdom forces fighting Boers in South Africa ask for reinforcements.

February 3 - Gubernatorial candidate William Goebel is assassinated in Frankfort, Kentucky. Former-Secretary of State Caleb Powers was later found guilty in a conspiracy to kill Goebels.
February 7 - The British Labour Party is formed.
February 8 - British troops are defeated by Boers at Ladysmith, South Africa.
February 9 - Richard Wigginton Thompson, U.S. congressman, dies.
February 14 - Russia responds to international pressure to free Finland by tightening imperial control over the country.
February 14 - Boer War: In South Africa, 20,000 British troops invade the Orange Free State.
February 17 - Battle of Paardeberg in the Second Boer War
February 22 - Hawaii officially becomes a territory of the United States.
February 23 - Boer War: Battle of Hart's Hill - In South Africa the Boers and British troops battle.
February 27 - Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronje.
February 27 - Ramsay MacDonald appointed secretary of newly formed British Labour Party.
February 28 - British Labour Party founded.

March 3 - Mining strike ends in Germany.
March 6 - A coal mine explosion in West Virginia traps 50 coal miners.
March 9 - Women in Germany demand right to participate in university entrance exams
March 11 - Boer War: Boer leader Paul Kruger's peace overtures are rejected by Prime Minister of the United Kingdom Lord Salisbury.
March 13 - Boer Wars: British forces occupy Bloemfontein, Orange Free State.
March 13 - In France, length of a workday for women and children is limited to 11 hours by law
March 14 - The Gold Standard Act is ratified placing United States currency on the gold standard.
March 16 - Sir Arthur Evans discovers the ruins of Knossos on Crete
March 24 - New York City Mayor Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.

April 1 - Every French policeman is assigned to carry a gun.
April 4 - Anarchist shoots at the Prince of Wales during his visit to Belgium in the birthday celebrations of the king of Belgium.
April 14 - Paris World Exhibition opens.

May 1 - Explosion of blasting powder in coal mine in Scofield, Utah kills 200
May 17 - Boer War: British troops relieve Mafeking
May 17 - Boxers destroy three villages near Peking and kill 60 Chinese Christians
May 18 - Boer delegation travels to USA to ask for assistance
May 18 - The United Kingdom proclaims a protectorate over Tonga.
May 21 - Russia invades Manchuria
May 23 - Sergeant William Harvey Carney becomes the first African American to be awarded the Congressional Medal of Honor (awarded for heroism in the Battle of Fort Wagner during the American Civil War).
May 24 - Boer War: British annex Orange Free State as Orange River Colony.
May 25 - Boer soldiers vote for the continuance of the war
May 28 - Boxers attack Belgian personnel in the Fengtai railway station
May 29 - Chinese government condemns Boxers
May 30 - Boxers occupy Tientsin
May 31 - Peacekeepers from various European countries arrive in China
May 31 - British under Lord Robert occupy Johannesburg

June 1 - Carrie Nation demolishes 25 saloons in Medicine Lodge
June 5 - Boer War: British soldiers take Pretoria, South Africa.
June 14 - The Reichstag approves a second law that allows the expansion of the German navy.
June 20 - The Boxers gather about 20,000 people near Peking and kill hundreds of European citizens, including the German ambassador.
June 30 - Piers of North German Lloyd Steamship line burned in Hoboken, New Jersey - 326 dead

August 14 - An international contingent of troups, under British command, invades Peking and frees the Europeans taken hostage.
August 27 - British defeat Boer commandos at Bergendal