Births on April 4

Alexander Tettey, Norwegian footballer

Failed empty result.

25 Feb

Ferdinand Marcos
People Power Revolution: President of the Philippines Ferdinand Marcos flees the nation after 20 years of rule; Corazon Aquino becomes the Philippines' first woman president.
1 Apr

Kathmandu
Communist Party of Nepal (Mashal) cadres attack a number of police stations in Kathmandu, seeking to incite a popular rebellion.
26 Apr

Chernobyl disaster
A nuclear reactor accident occurs at the Chernobyl Nuclear Power Plant in the Soviet Union (now Ukraine), creating the world's worst nuclear disaster.
27 Apr

Chernobyl disaster
The city of Pripyat as well as the surrounding areas are evacuated due to Chernobyl disaster.
2 Jul

Augusto Pinochet
Rodrigo Rojas and Carmen Gloria Quintana are burnt alive during a street demonstration against the dictatorship of General Augusto Pinochet in Chile.