| Date | Weekday | Event |
|---|
| September 1, 1159 | Tuesday | Adrian IV only English pope (1154-59) dies (birth date unknown) |
|
| September 1, 1557 | Sunday | Jacques Cartier French explorer dies (birth date unknown) |
| September 1, 1772 | Tuesday | Mission San Luis Obispo de Tolosa founded in California |
| September 1, 1807 | Tuesday | Aaron Burr aquitted of charges of plotting to set up an empire |
| September 1, 1849 | Saturday | California Constitutional Convention held in Monterey |
| September 1, 1859 | Thursday | 1st pullman sleeping car in service |
| September 1, 1859 | Thursday | R.C.Carrington & R Hodgson make 1st observation of solar flare |
| September 1, 1863 | Tuesday | RR & ferry connection between SF & Oakland inaugurated |
| September 1, 1864 | Thursday | Sherman's march through Georgia |
| September 1, 1870 | Thursday | Napoleon III captured at Sedan |
| September 1, 1878 | Sunday | 1st woman telephone operator starts work (Emma Nutt in Boston) |
| September 1, 1890 | Monday | 1st baseball tripleheader - Boston vs Pittsburgh |
| September 1, 1905 | Friday | Alberta & Saskatchewan become 8th & 9th Canadian provinces |
| September 1, 1906 | Saturday | Jack Combs pitches 24 inninings beating Red Sox |
| September 1, 1911 | Friday | M. Fourny sets world aircraft distance record of 720 km |
| September 1, 1914 | Tuesday | Martha last known passenger pigeon dies at Cincinnati Zoo |
| September 1, 1918 | Sunday | US troops land in Vladivostok Siberia stay until 1920 |
| September 1, 1923 | Saturday | Earthquake struck Tokyo estimated 74 000 people died |
| September 1, 1939 | Friday | PHYSICAL REVIEW publishes paper 1st to deal with "black holes." |
| September 1, 1939 | Friday | Germany invades Poland starting WW II |
| September 1, 1949 | Thursday | 1st network dective series - Private Eyes premeirs |
| September 1, 1952 | Monday | Sutro Baths SF purchased by George Whitney |
| September 1, 1969 | Monday | Col Moammar Gadhafi rose to power deposed Libya's King Idris |
| September 1, 1969 | Monday | Libyan revolution (National Day) |
| September 1, 1976 | Wednesday | NJ Meadowlands racetrack opens |
| September 1, 1977 | Thursday | 1st TRS-80 Model I computer sold |
| September 1, 1979 | Saturday | Pioneer 11 makes 1st fly-by of Saturn discovers new moon rings |
| September 1, 1983 | Thursday | Korean Boeing 747 strayed into Soviet air space & was shot down by a Soviet jet fighter. All 269 people aboard died |
| September 1, 1985 | Sunday | Titanic sunk in 1912 found by French & American scientists |