Erich Sachs, b: 1899 -

^{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}


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

		^Willi Sachs^{b.1864 d.1909 Berlin, Germany}	^{Auguste Bielschowsky}^{b.1829 d.1877}

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

		^{Hedwig Forell}^{b.1868 d.1927 Berlin, Germany}	^{Auguste Bielschowsky}^{b.1839 d.1923 Breslau, Poland}

^{Barbara Charlotte Sachs}^b.1927 d.			^{Robert Bielschowsky}^{b.1831 d.1894 Oels, Wroclaw, Poland}

		^{Carl Israel Bielschowsky}^{b.1861 d.1919 Oels, Wroclaw, Poland}	^{Elfriede Lippmann}^{b.1835 d.1904 Oels, Wroclaw, Poland}

	^{Johanna Bielschowsky}^{b.1896 d.1957}

		^{Rosa Sara Romann}^{b.1872 d.1912 Oels, Wroclaw, Poland}