 | 1914 - 1918 World War I 1922 USSR formed by Soviet states 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins | 1871 Franco - Prussian War 1895 Marconi invents wireless telegraphy 1899 Boer War begins 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage | 1815 Battle of Waterloo, Napoleon defeat 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal |
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|  | Jan Hubert Slangen b. d. | ||||||
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| | | Jan Willem Peters b.1815 Oirsbeek, Netherlands d.1887 Hoensbroek, Netherlands | | Maria Catharina Peters b. d. | |||
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|  | Maria Elisabeth Peters b.1845 d.1892 Hoensbroek, Netherlands | | | | |||
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| |  | Marie Machtilde Penris b.1811 Hoensbroek, Netherlands d. | | Maria Helena Penris b. d. | |||
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