| Holiday name | Holiday location | Holiday type |
|---|---|---|
| Independence Day | Multiple [Show] | National Holiday |
| Independence Day | Multiple [Show] | Public Holiday |
| American Business Women’s Day | - | Unofficial (Work & Occupation) |
| Car Free Day | - | Unofficial (Activity & Action, Nature & Environment) |
| National Centenarian’s Day | - | Unofficial (Appreciation & Honor) |
| Elephant Appreciation Day | - | Unofficial (Animals) |
| National Girls’ Night In Day | - | Unofficial (Fun & Joy, Relationships & Family) |
| Hobbit Day | - | Unofficial (Art & Entertainment, Weird & Obscure) |
| National Ice Cream Cone Day | - | Unofficial (Food & Drinks) |
| National Legwear Day | - | Unofficial (Lifestyle) |
| National White Chocolate Day | - | Unofficial (Food & Drinks) |
| September Equinox | Multiple [Show] | Season |
| September equinox | Multiple [Show] | Season |
| Emancipation Day | United States (Ohio) | Local Observance |
| Autumn Equinox | Japan | National Holiday |
| Saint Mauritius' Day | Switzerland (Appenzell Innerrhoden*, Solothurn*) | Common Local Holiday |
| Mabon | - | (Culture & History) |
Historical Events on September 22
- 1776: During the American Revolution, Nathan Hale is hanged for being a spy.
- 1789: Office of U.S Postmaster General is founded.
- 1823: Joseph Smith claims he found the golden plates after God directed him to the place they were buried.
- 1862: The preliminary version of the Emancipation Proclamation is released.
- 1888: National Geographic Magazine is published for the first time.
- 1941: During WWII, the German SS murder over six thousand Jews in Vinnytsia, Ukraine.
- 1948: As part of the Berlin Air Lift, Gail Halvorsen began parachuting candy to children.
- 1979: The Vela Incident occurred on this day. A double flash of light – believed by many to be of nuclear origin – occurred on the Prince Edward Islands near Antartica.
- 1980: Iran is invaded by Iraq.
- 1991: The Huntington Library makes the Dead Sea Scrolls publicly available for the very first time.
Famous Birthdays on September 22
- Queen of England and 4th wife of Henry VIII, Anne of Cleves is born in 1515.
- Tsar Vasili IV of Russia is born in 1552.
- Scottish author Quintin Craufurd is born in 1743.
- American actress Martha Scott is born in 1912.
- German activist Hans Scholl is born in 1918.
- Welsh doctor, poet and author Dannie Abse is born in 1923.
- English author and illustrator Charles Keeping is born in 1924.
- English author Rosamunde Pilcher is born in 1924.
- English singer-songwriter and rock star David Coverdale is born in 1951.
- American singer, actress and author Debby Boone is born in 1956.
- American singer-songwriter and bass player Johnette Napolitano is born in 1957.
- American astrophysicist, astronomer and Nobel Prize laureate Saul Perlmutter is born in 1959.
- American actor Scott Baio is born in 1960.
- American novelist Brian Keene is born in 1967.
- Cuban boxer Felix Savon is born in 1967.
- American author and poet Elizabeth Bear is born in 1971.
- American journalist Gloria Borger is born in 1971.
- American singer-songwriter David Berkeley is born in 1976.
- American singer-songwriter and poet Emilie Autumn is born in 1979.
- Australian rugby player Phil Waugh is born in 1979.
