| Date | Weekday | Event |
|---|
| March 9, 1497 | Tuesday | Nicolaus Copernicus 1st recorded astronomical observation - |
|
| March 9, 1661 | Wednesday | Cardinal Jules Mazarin - chief minister of France - died |
| March 9, 1796 | Wednesday | Napoleon Bonaparte marries Josephine de Beauharnais |
| March 9, 1822 | Saturday | Charles Graham of NY granted patent for artificial teeth |
| March 9, 1860 | Friday | 1st Japanese-US ambassador |
| March 9, 1862 | Sunday | Monitor (Union) & "Merrimack" (Rebel) battle in Hampton Roads |
| March 9, 1954 | Tuesday | Edward R Murrow criticizes Sen McCarthy (See it Now) |
| March 9, 1961 | Thursday | Sputnik 9 carries Chernushka (dog) into orbit |
| March 9, 1976 | Tuesday | Islander Glenn Resch's 10th shut-out opponent - Blues 4-0 |
| March 9, 1979 | Friday | 1st extraterrestrial volcano discovered (Jupiter's satellite Io) |