The Panmunjom Declaration is signed between North and South Korea, officially declaring their intentions to end the Korean conflict.
At least four explosions hit the Ukrainian city of Dnipropetrovsk with at least 27 people injured.
The 2011 Super Outbreak devastates parts of the Southeastern United States, especially the states of Alabama, Mississippi, Georgia, and Tennessee. Two hundred five tornadoes touched down on April 27 alone, killing more than 300 and injuring hundreds...
Estonian authorities remove the Bronze Soldier, a Soviet Red Army war memorial in Tallinn, amid political controversy with Russia.
Israeli archaeologists discover the tomb of Herod the Great south of Jerusalem.
Construction begins on the Freedom Tower (later renamed One World Trade Center) in New York City.
Airbus A380 aircraft has its maiden test flight.
South African general election: The first democratic general election in South Africa, in which black citizens could vote. The Interim Constitution comes into force.
Most of the Zambia national football team lose their lives in a plane crash off Libreville, Gabon en route to Dakar, Senegal to play a 1994 FIFA World Cup qualifying match against Senegal.
The Federal Republic of Yugoslavia, comprising Serbia and Montenegro, is proclaimed.
Betty Boothroyd becomes the first woman to be elected Speaker of the British House of Commons in its 700-year history.
The Russian Federation and 12 other former Soviet republics become members of the International Monetary Fund and the World Bank.
The April 27 demonstrations, student-led protests responding to the April 26 Editorial, during the Tiananmen Square protests of 1989.
The U.S. Department of Justice bars Austrian President Kurt Waldheim (and his wife, Elisabeth, who had also been a Nazi) from entering the US, charging that he had aided in the deportations and executions of thousands of Jews and others as a German A...
The city of Pripyat and surrounding areas are evacuated due to the Chernobyl disaster.
John Ehrlichman, a former aide to U.S. President Richard Nixon, is released from the Federal Correctional Institution, Safford, Arizona, after serving 18 months for Watergate-related crimes.
The Saur Revolution begins in Afghanistan, ending the following morning with the murder of Afghan President Mohammed Daoud Khan and the establishment of the Democratic Republic of Afghanistan.
Willow Island disaster: In the deadliest construction accident in United States history, 51 construction workers are killed when a cooling tower under construction collapses at the Pleasants Power Station in Willow Island, West Virginia.
Thirty-seven people are killed when American Airlines Flight 625 crashes at Cyril E. King Airport in Saint Thomas, U.S. Virgin Islands.
109 people are killed in a plane crash near Pulkovo Airport.