World History Timeline

Related events

September 5, 1977★★★★★

Launch of Voyager 1

NASA launches Voyager 1 to study Jupiter and Saturn; it later becomes the first human-made object to reach interstellar space.

ExplorationScience· United States
July 20, 1976★★★★★

Viking 1 lands on Mars

NASA's Viking 1 lander touches down on Mars and returns the first images from the planet's surface.

ExplorationScience· United States
December 25, 1978 – 1989★★★★★

Cambodian–Vietnamese War

Following Khmer Rouge border attacks, Vietnam invades Cambodia, takes Phnom Penh on 7 January 1979 and overthrows the Khmer Rouge; Vietnamese troops remain until 1989.

War· Vietnam, Cambodia
c. 1975 – c. 1995★★★★★

Vietnamese boat people

Hundreds of thousands of people flee Vietnam by sea after 1975; many die at sea and others are resettled, mostly in Western countries.

Politics· Vietnam, United States, Australia, Canada, France, Malaysia, Hong Kong, Thailand
March 10, 1975 – April 30, 1975★★★★★

1975 Spring Offensive

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.

War· Vietnam