Spouse
1877
Oct 11
| 1877 • Thomas Edison announces his invention of the phonograph, a machine that can record sound, considered Edison's first great invention. Edison demonstrates the device for the first time on November 29. |
1900
Age: 22y
| 1900 • Dr. Henry A. Rowland of Johns Hopkins University announces a theory about the cause of the Earth's magnetism. |
1910
Age: 32y
| 1910 • George V becomes King of the United Kingdom upon the death of his father, Edward VII. |
1920
Age: 42y
| 1920 • The League of Nations moves its headquarters to Geneva, Switzerland. |
1930
Age: 52y
| 1930 • Sir Muhammad Iqbal's presidential address in Allahabad introduces the two nation theory, outlining a vision for the creation of Pakistan. |
1940
Age: 62y
| 1940 • WWII: Chad is the first French colony to proclaim its support for the Allies. |
1950
Apr 29
Age: 72y
| 1950 • Darlington Raceway is the site of the inaugural Southern 500, the first 500-mile NASCAR race. |