Spouse
Children
1901
Apr 12
| 1901 • German Oscar Troplowitz invents for German company Beiersdorf AG the medical plaster patch called Leukoplast. |
1920
Dec 11
Age: 19y
marriageRobert Hicks Van Deusen Chicago, Cook, Illinois, USA ⇓ 1 Source ⇓ |
| 1920 • 26 – San Remo conference: Representatives of Italy, France, the United Kingdom and Japan meet to determine the League of Nations mandates for administration of territories following partitioning of the Ottoman Empire. |
1921
Sep 19
Age: 20y
birth of childFrederick Van Deusen Chicago, Cook, Illinois, USA ⇓ 1 Source ⇓ |
| 1921 • The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic. |
1925
Aug 29
Age: 24y
birth of childRobert Hicks Van Deusen Jr. Chicago, Cook, Illinois, USA ⇓ 1 Source ⇓ |
| 1925 • Charles Francis Jenkins achieves the first synchronized transmission of pictures and sound, using 48 lines, and a mechanical system. A 10-minute film of a miniature windmill in motion is sent across 5 miles from Anacostia to Washington, D.C. The images are viewed by representatives of the National Bureau of Standards, the U.S. Navy, the Commerce Department, and others. Jenkins calls this "the first public demonstration of radiovision". |