WHAT ALL HAPPENED MARCH TO APRIL 1977
Find out what all happened March to April 1977

The Red Army Faction trial ends, with Andreas Baader, Gudrun Ensslin and Jan-Carl Raspe found guilty of four counts of murder and more than 30 counts of attempted murder. (28. April 1977)

The 1977 Hanafi Muslim Siege: more than 130 hostages held in Washington, D.C., by Hanafi Muslims are set free after ambassadors from three Islamic nations join negotiations. (11. March 1977)

28 people are killed in the Guatemala City air disaster. (27. April 1977)

Assassination of Kamal Jumblatt, the main leader of the anti-government forces in the Lebanese Civil War. (16. March 1977)

Optical fiber is first used to carry live telephone traffic. (22. April 1977)

Tenerife airport disaster: Two Boeing 747 airliners collide on a foggy runway on Tenerife in the Canary Islands, killing 583 (all 248 on KLM and 335 on Pan Am). 61 survived on the Pan Am flight. This is the worst aviation accident in history. (27. March 1977)

The Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure is signed. (28. April 1977)

German Federal prosecutor Siegfried Buback and his driver are shot by two Red Army Faction members while waiting at a red light. (7. April 1977)

London Transport's Silver Jubilee buses are launched. (11. April 1977)

The 1977 Vrancea earthquake in eastern and southern Europe kills more than 1,500, mostly in the seriously damaged city of Bucharest, Romania. (4. March 1977)

The Hanafi Siege: In a thirty-nine-hour standoff, armed Hanafi Muslims seize three Washington, D.C., buildings, killing two and taking 149 hostage. (9. March 1977)

Rings of Uranus: Astronomers discover rings around Uranus. (10. March 1977)