Chinese naval forces clash with the South Vietnamese navy and take control of all of the Paracel Islands.
Farmers digging a well near Xi'an uncover thousands of terracotta warriors buried with Qin Shi Huang's mausoleum.
The United States, North and South Vietnam and the Provisional Revolutionary Government sign an agreement ending direct US involvement in the war.
The last US combat units leave South Vietnam under the terms of the Paris Peace Accords.
Hundreds of thousands of people flee Vietnam by sea after 1975; many die at sea and others are resettled, mostly in Western countries.
Beginning with the attack on Buôn Ma Thuột, North Vietnamese forces advance across the South, leading to South Vietnam's collapse on 30 April 1975.
The Khmer Rouge capture Phnom Penh and forcibly empty the cities; Pol Pot's regime causes the deaths of an estimated 1.5 to 2 million people.