April 24, 1915 – 1917★★★★★
Armenian genocide
During the First World War, Ottoman authorities carry out mass deportations and killings of Armenians, causing roughly a million or more deaths.
WarPolitics· Turkey, Armenia, Syria
← Previous year with events: 1914Next year with events: 1916 →View on map →View the whole 20th century
Events this year
April 25, 1915★★★★★
ANZAC landing at Gallipoli
The Australian and New Zealand Army Corps landed on the Gallipoli peninsula in the Allies' unsuccessful campaign against the Ottoman Empire; 25 April is now commemorated as Anzac Day.
War· Australia, New Zealand, Turkey, United Kingdom
November 25, 1915★★★★★
Einstein presents general relativity
Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences, describing gravity as the curvature of spacetime.
Science· Germany
Ongoing
1858 – 1947★★★★★
Beginning of the British Raj
After the 1857 rebellion, the Government of India Act transfers rule from the East India Company to the British Crown; the Mughal Empire formally ends.
Politics· India, Pakistan, Bangladesh, Myanmar, United Kingdom
November 20, 1910 – 1920★★★★★
Mexican Revolution
Francisco Madero calls for revolt against Porfirio Díaz, launching a decade-long revolution involving figures such as Pancho Villa and Emiliano Zapata.
RevolutionWar· Mexico
July 28, 1914 – November 11, 1918★★★★★
World War I
Austria-Hungary declares war on Serbia, drawing Europe's powers into a global war that lasts until the armistice of 11 November 1918.
War· Austria, Serbia, Germany, France, United Kingdom, Russia