Hilde Stern, 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}




^Xy Lorenz^{b. d.}





	^{Robert Stern}^{b. d.}

^Hilde Stern^b.1899 d.		^Josef Reich^{b.1832 d.1883 Oels, Wroclaw, Poland}

	^{Gertrud Reich}^b.1879 d.	^{Ernestine Bielschowsky}^{b.1844 d.1911 Breslau, Poland}