September
- 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: Cassius Clay 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 arrest.
- 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.
Famous quotes containing the word september:
“Thus was my first years life in the woods completed; and the second year was similar to it. I finally left Walden September 6th, 1847.”
—Henry David Thoreau (18171862)