| 112201 | October 1 | Event | 1947 – The North American F-86 Sabre flies for the first time. |
| 112202 | October 1 | Event | 1949 – The People's Republic of China is established and declared by Mao Zedong. |
| 112203 | October 1 | Event | 1955 – The Honeymooners premiered on American television. |
| 112204 | October 1 | Event | 1957 – First appearance of In God we trust on U.S. paper currency. |
| 112205 | October 1 | Event | 1958 – NASA is created to replace NACA. |
| 112206 | October 1 | Event | 1960 – Nigeria gains independence from the United Kingdom. |
| 112207 | October 1 | Event | 1961 – The United States Defense Intelligence Agency (DIA) is formed, becoming the country's first centralized military espionage organization. |
| 112208 | October 1 | Event | 1961 – East and West Cameroon merge to form the Federal Republic of Cameroon. |
| 112209 | October 1 | Event | 1962 – First broadcast of The Tonight Show Starring Johnny Carson. |
| 112210 | October 1 | Event | 1964 – The Free Speech Movement is launched on the campus of University of California, Berkeley. |
| 112211 | October 1 | Event | 1964 – Japanese Shinkansen ("bullet trains") begin high-speed rail service from Tokyo to Osaka. |
| 112212 | October 1 | Event | 1965 – General Suharto puts down an apparent coup attempt by the 30 September Movement in Indonesia. |
| 112213 | October 1 | Event | 1966 – West Coast Airlines Flight 956 crashes with eighteen fatalities and no survivors 5.5 miles south of Wemme, Oregon. This accident marks the first loss of a DC-9. |
| 112214 | October 1 | Event | 1968 – The Guyanese government takes over the British Guiana Broadcasting Service (BGBS). |
| 112215 | October 1 | Event | 1969 – Concorde breaks the sound barrier for the first time. |
| 112216 | October 1 | Event | 1971 – Walt Disney World opens near Orlando, Florida, United States. |
| 112217 | October 1 | Event | 1971 – The first brain-scan using x-ray computed tomography (CT or CAT scan) is performed at Atkinson Morley Hospital in Wimbledon, London. |
| 112218 | October 1 | Event | 1975 – The Seychelles gain internal self-government. The Ellice Islands split from Gilbert Islands and take the name Tuvalu. |
| 112219 | October 1 | Event | 1975 – Thrilla in Manila: Muhammad Ali defeats Joe Frazier in a boxing match in Manila, Philippines. |
| 112220 | October 1 | Event | 1975 – Al Jackson, Jr. (Booker T. & the M.G.'s), was shot fatally five times in the back in his own home. |
| 112221 | October 1 | Event | 1978 – Tuvalu gains independence from the United Kingdom. |
| 112222 | October 1 | Event | 1978 – The Voltaic Revolutionary Communist Party is founded. |
| 112223 | October 1 | Event | 1979 – Pope John Paul II begins his first pastoral visit to the United States. |
| 112224 | October 1 | Event | 1979 – The MTR, the rapid transit railway system in Hong Kong, opens. |
| 112225 | October 1 | Event | 1979 – The United States returns sovereignty of the Panama Canal to Panama. |
| 112226 | October 1 | Event | 1982 – Helmut Kohl replaces Helmut Schmidt as Chancellor of Germany through a constructive vote of no confidence. |
| 112227 | October 1 | Event | 1982 – Epcot opens at Walt Disney World near Orlando, Florida, United States. |
| 112228 | October 1 | Event | 1982 – Sony launches the first consumer compact disc player (model CDP-101). |
| 112229 | October 1 | Event | 1985 – The Israeli Air Force bombs Palestine Liberation Organization Headquarters in Tunis. |
| 112230 | October 1 | Event | 1987 – The Whittier Narrows earthquake shakes the San Gabriel Valley, registering as magnitude 5.9. |