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 |
Arno Klemm b.1886 d. | ||||||||
Horst Günter Klemm b.1920 d. | ||||||||
Arno Wolfgang Klemm b.1925 d. | ||||||||
Paul Cohnstädt b.1852 d.1926 | ||||||||
Käthe Cohnstädt b.1892 d. | Valentin Mühsam b.1826 d.1897 Schweidnitz, Poland | |||||||
Anna Mühsam b.1855 d. | Bertha Bielschowsky b.1829 d.1911 Schweidnitz, Poland | |||||||