Johanna Sobersky, b: 1892 -

^{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}




^{Isidor Schiffer}^b.1885 d.





	^{Louis Sobersky}^{b.1861 d.1930 Kattowitz, Slaskie, Poland}

^{Johanna Sobersky}^b.1892 d.		^{Louis Bielschowsky}^{b.1827 d.1895 Pless, Katowice, Poland}

	^{Laura Bielschowsky}^{b.1863 Kattowitz, Slaskie, Poland d.}	^{Hanna Riesenfeld}^{b.1825 d.1883 Kattowitz, Slaskie, Poland}