1922 USSR formed by Soviet states 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins 1964 - 1973 Vietnam War | 1895 Marconi invents wireless telegraphy 1899 Boer War begins 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage 1914 - 1918 World War I | 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal 1871 Franco - Prussian War |
Albert Hess b.1882 d.1916 | ||||||||
Hans Hess b.1914 d. | ||||||||
Alexander Fröhlich b.1859 d. Berlin, Germany | ||||||||
Hildegard Fröhlich b.1891 d. | Daniel Bielschowsky b. d.1896 Breslau, Poland | |||||||
Louise Bielschowsky b.1864 d.1930 Berlin, Germany | Johanna Wiener b.1834 d.1888 Katscher, Opole, Poland | |||||||