| Christian Doppler, discovered Doppler Effect (color shift) | |
| Wendell Phillips, women's suffrage, antislavery, prison reformer | |
| Sir Ambrose Fleming, inventor of the diode. | |
| US receives rights to Pearl Harbor, on Oahu, Hawaii. | |
| 1st Army-Navy football game. Score: Navy 25, Army 0. | |
| Yugoslav Republic Day is first proclamed. | |
| first underground atomic explosion, Frenchman Flat, Nevada | |
| Mercury 5 launches a chimp (Ham/Enos) | |
| Kilauea Volcano erupts in Hawaii | |
By Scott Labrecque version 9.4.0.0