Modern Era
Partition of Bengal (1905): Curzon, Swadeshi and Reversal
Bengal was split into two provinces, provoking the Swadeshi movement; the partition was annulled at the Delhi Durbar of 1911.
Region
Asia
Modern Era
Treaty of Portsmouth (1905): Ending the Russo-Japanese War
Russia ceded southern Sakhalin and its Manchurian leases to Japan and recognised Japanese dominance in Korea, but paid no indemnity.
Modern Era
Battle of Tsushima (1905): Togo Destroys the Russian Baltic Fleet
Decisive Japanese victory; almost the entire Russian fleet was sunk, captured or interned, and Russia soon agreed to peace talks.
Modern Era
Tunguska Event (1908): The Siberian Explosion Explained
A cosmic body exploded in the air above the taiga, flattening an estimated 80 million trees over about 2,000 sq km without leaving a crater.
Modern Era
Assassination of Ito Hirobumi (1909) by An Jung-geun at Harbin
Ito died within the hour; An Jung-geun was tried by a Japanese court and executed in March 1910, and Japan annexed Korea in August 1910.
Modern Era
Japanese Annexation of Korea (1910): End of the Korean Empire
Korea became a Japanese colony governed by a Government-General until Japan's defeat in 1945.
Modern Era
Delhi Durbar (1911): George V's Imperial Assembly in India
George V received homage as Emperor of India, the capital was moved from Calcutta to Delhi and the partition of Bengal was reversed.
Modern Era
Xinhai Revolution (1911): The Fall of China's Qing Dynasty
The Qing dynasty abdicated on 12 February 1912 and the Republic of China replaced more than two millennia of imperial rule.
Modern Era
Russian Civil War (1917-1922): Reds Against Whites
Bolshevik victory; the Soviet state survived and the Union of Soviet Socialist Republics was formed in December 1922.
Modern Era
Jallianwala Bagh Massacre (1919): The Amritsar Shooting
British-led troops killed at least 379 people by the official count, and probably many more; the massacre turned millions of Indians against British rule.
Modern Era
Haiyuan Earthquake (1920): China's Great Ningxia Earthquake
One of the deadliest earthquakes in recorded history; an estimated 200,000 to 270,000 people died and whole villages were buried by landslides.
Prehistory
Roy Chapman Andrews and the Gobi Dinosaur Eggs of 1923
The Central Asiatic Expeditions found the first fossil eggs widely recognised as dinosaur eggs, along with new Late Cretaceous dinosaurs and mammals.