Willi Sachs, b: 1864 -

^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}

^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}

^{1798 Irish revolt against English rule}
^{1804 Napoleon becomes French Emperor}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}



		^Louis Sachs^{b.1820 d.1868 Breslau, Poland}

	^Willi Sachs^{b.1864 d.1909 Berlin, Germany}		^{Wolf Bielschowsky}^{b. d.1863 Oels, Wroclaw, Poland}

^{Gertrud Sachs}^b.1892 d.		^{Auguste Bielschowsky}^{b.1829 d.1877}	^{Sophie Schweitzer}^{b.1797 d.1887 Oels, Wroclaw, Poland}

^Eva Sachs^b.1895 d.

^Erich Sachs^b.1899 d.		^{Moritz Forell}^{b.1831 d.1874 Breslau, Poland}

	^{Hedwig Forell}^{b.1868 d.1927 Berlin, Germany}		^{Jacob Louis Bielschowsky}^{b.1805 d.1892 Oels, Wroclaw, Poland}

		^{Auguste Bielschowsky}^{b.1839 d.1923 Breslau, Poland}	^{Henriette Ehrlich}^{b. Wodzislaw Slaski, Poland d.1891 Oels, Wroclaw, Poland}