1887
Apr 11
| 1887 • International Bureau of Intellectual Property. |
1915
Oct 6
Age: 28y
|
marriageMargaret Elizabeth Fitzpatrick Seattle, King, Washington, USA ⇓ 1 Source ⇓ |
| 1915 • Georges Claude patents the neon discharge tube for use in advertising. |
about
Age: 31y
1919
Age: 31y
|
birth of childJohn Bagnall Jr. 2 Sources ⇓ |
| 1919 • 24 – Charles I, last Emperor of Austria, leaves Austria for exile in Switzerland. |
1920
Age: 32y
| 1920 • August 7 – The Second Congress of the Communist International takes place in Saint Petersburg and Moscow. The notorious Twenty-one Conditions are adopted. |
1956
Mar 12
Age: 68y
| 1956 • Videotape is first demonstrated at the 1956 NARTB (now NAB) convention in Chicago by Ampex. It is the demonstration of the first practical and commercially successful videotape format known as 2" Quadruplex. |