| 1914 - 1918 World War I 1922 USSR formed by Soviet states 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins  | 1871 Franco - Prussian War 1895 Marconi invents wireless telegraphy 1899 Boer War begins 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage  | 1815 Battle of Waterloo, Napoleon defeat 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal  | 
![]()  | ![]()  | ![]()  |  Adolf Bielschowsky b.1819 d.1891 Pless, Katowice, Poland  | |||||
![]()  | ![]()  |  Julius Bielschowsky b.1849 Pless, Katowice, Poland d.1934 Lódz, kie, Poland  |  Friederike Schiller b.1814 d.1856  | |||||
![]()  |  Adolf Bielschowsky b.1891 Lódz, kie, Poland d.1944 Warsaw, Poland  | ![]()  |  Hirschell Nothmann b. d.  | |||||
![]()  | ![]()  |  Mathilde Nothmann b.1865 Myslowice, Poland d.1939 Lódz, kie, Poland  |  Ida Wachsner b. d.  | |||||
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![]()  |  Stella Kohn b. d.  | |||||||
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