Important Events (from1901 to 2015)

October 20, 2015

October 20
• 1904 – Chile and Bolivia sign the Treaty of Peace and Friendship, delimiting the border between the two countries.
• 1910 – The hull of the RMS Olympic, sister-ship to the ill-fated RMS Titanic, is launched from the Harland and Wolff shipyard in Belfast, Northern Ireland.
• 1935 – The Long March, a mammoth retreat undertaken by the armed forces of the Chinese Communist Party a year prior, ends.
• 1939 – Pope Pius XII publishes his first major encyclical, entitled Summi Pontificatus.
• 1941 – World War II: Thousands of civilians in Kragujevac in German-occupied Serbia are murdered in the Kragujevac massacre.
• 1944 – The Soviet Army and Yugoslav Partisans liberate Belgrade, the capital of Yugoslavia
• 1944 – Liquefied natural gas leaks from storage tanks in Cleveland and then explodes; the explosion and resulting fire level 30 blocks and kill 130.
• 1944 – American general Douglas MacArthur fulfills his promise to return to the Philippines when he commands an Allied assault on the islands, reclaiming them from the Japanese during the Second World War.
• 1946 – Government of the Democratic Republic of Vietnam decides that October 20 is Vietnam Women's Day.
• 1947 – The House Un-American Activities Committee begins its investigation into Communist infiltration of Hollywood, resulting in a blacklist that prevents some from working in the industry for years.
• 1947 – The United States of America and the Islamic Republic of Pakistan establish diplomatic relations for the first time.
• 1951 – The "Johnny Bright incident" occurs in Stillwater, Oklahoma
• 1952 – Governor Evelyn Baring declares a state of emergency in Kenya and begins arresting hundreds of suspected leaders of the Mau Mau Uprising, includingJomo Kenyatta, the future first President of Kenya.
• 1961 – The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.
• 1962 – People's Republic of China launches simultaneous offensives in Ladakh and across the McMahon Line, igniting the Sino-Indian War.
• 1968 – Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
• 1970 – Siad Barre declares Somalia a socialist state.
• 1971 – The Nepal Stock Exchange collapses.
• 1973 – "Saturday Night Massacre": United States President Richard Nixon fires U.S. Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus after they refuse to fire Watergate special prosecutor Archibald Cox, who is finally fired by Robert Bork.
• 1973 – The Sydney Opera House opens.
• 1976 – The ferry George Prince is struck by a ship while crossing the Mississippi River between Destrehan and Luling, Louisiana. Seventy-eight passengers and crew die and only 18 people aboard the ferry survive.
• 1977 – Rock band Lynyrd Skynyrd's plane crashes.
• 1981 – Two police officers and an armored car guard are killed during an armed robbery in Rockland County, New York, carried out by members of the Black Liberation Army and Weather Underground.
• 1982 – During the UEFA Cup match between FC Spartak Moscow and HFC Haarlem, 66 people are crushed to death in the Luzhniki disaster.
• 1991 – The Oakland Hills firestorm kills 25 and destroys 3,469 homes and apartments, causing more than $2 billion in damage.
• 1991 – A 6.8 Mw earthquake strikes the Uttarkashi region of India, killing more than 1,000 people.
• 2011 – Libyan Civil War: National Transitional Council rebel forces capture ousted Libyan dictator Muammar Gaddafi in his hometown of Sirte and kill him shortly thereafter.