September 1 - Sultan Hisamuddin Alam Shah, Sultan of Selangor and 2nd Yang di-Pertuan Agong of Malaysia,
dies in office. He is replaced by Tuanku Syed Putra, Raja of Perlis.
- Disgruntled railroad workers effectively halt operations of the Pennsylvania Railroad, marking the first shutdown in the
company's history (the event lasts two days).
September 2 - The first elections of the Parliament of the Central Tibetan Administration are held. The Tibetan
community observes this date as Democracy Day.
September 5 - 1960 Summer Olympic Games: Muhammad Ali wins the gold medal in light-heavyweight boxing.
- The Congolese president, Joseph Kasavubu, fires Patrice Lumumba's entire government, and also places Lumumba under house
September 6 - William Hamilton Martin and Bernon F. Mitchell, two American cryptologists, announce their defection to
the Soviet Union at a press conference in Moscow.
September 8 - In Huntsville, Alabama, U.S. President Dwight D. Eisenhower formally dedicates the Marshall Space Flight
Center (which had been activated by NASA on July 1).
September 14 - Colonel Joseph Mobutu takes power in Republic of the Congo via a military coup.
- The countries of Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela form OPEC.
September 22 - Mali, the sole remaining member of the "Mali Federation" following the withdrawal of Senegal one month
earlier, declares its full independence as the Republic of Mali.
September 26 - The leading candidates for President of the United States, Richard Nixon and John F. Kennedy, made the
first televised debate.
September 30 - Television sitcom The Flintstones debuts on ABC. (source: Wikipedia)