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

			Marinus Treffers  b.1818 Drongelen, Netherlands  d.1905 Drongelen, Netherlands
	Treffers  b.1849 Drongelen, Netherlands  d.
	Pieternella Cornelia Treffers  b.1851 Drongelen, Netherlands  d.
				Jacob Bouman  b.           d.
			Maaike Bouman  b.1827 Aalburg, Netherlands  d.1901 Drongelen, Netherlands
				Geertrui van der Zalm  b.           d.

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