Spouse
Children
1892
Apr 28
| 1892 • John Thompson becomes Canada's fourth prime minister. |
1911
Age: 18y
|
birth of childFrancis Franklin Louisiana, USA ⇓ 2 Sources ⇓ |
| 1911 • Heike Kamerlingh Onnes discovers Superconductivity. He presented his findings on April 28, 1911.van Delft, D., and Kes, P. The discovery of superconductivity. Physics Today (September 2010), 38–43. |
1913
Age: 20y
|
birth of childThelma Franklin Louisiana, USA ⇓ 1 Source ⇓ |
| 1913 • French physicist Georges Sagnac shows that light propagates at a speed independent of the speed of its source. |
1920
Age: 27y
| 1920 • Finland joins the League of Nations. |
1930
Age: 37y
| 1930 • The Mickey Mouse comic strip makes its first appearance. |
1940
Age: 47y
| 1940 • Second Vienna Award: Germany and Italy compel Romania to cede half of Transylvania to Hungary. |
1970
May 14
Age: 78y
| 1970 • Ethiopia recognizes the People's Republic of China. |