1801
Jan 31
| 1801 • Second Battle of Algeciras: The British fleet defeats the French and Spanish fleets. |
1831
Apr 7
Age: 30y
|
birth of childHenry Thornton Vermilion County, Illinois, USA ⇓ 1 Source ⇓ |
| 1831 • Battle of Grochow: Polish rebel forces divide a Russian army. |
1887
Jan 23
Age: 85y
| 1887 • Heinrich Hertz discovers the photoelectric effect on the production and reception of electromagnetic (EM) waves (radio). This was an important step towards the understanding of the quantum nature of light. |