Konrad Stern, b: 1922 -

^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}

^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}

^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}



	^{Walter Max Stern}^{b.1890 Breslau, Poland d.1971}

^{Konrad Stern}^{b.1922 d.1974}		^{Albert Bielschowsky}^{b.1860 d.1913 Namslau, Opole, Poland}

	^{Eva Bielschowsky}^{b.1900 d.1959}	^{Amanda Baender}^{b.1869 d.1930 Namslau, Opole, Poland}





^{Eleanore Weigert}^b.1921 d.