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

			Leendert Zwijnenburg  b.1894 Hekendorp, Netherlands  d.1957 Waddinxvee, Netherlands
							Jacob Plak  b.1834 Zwammerda, Netherlands  d.1898 Reeuwijk, Netherlands
				Willem Plak  b.1867 Reeuwijk, Netherlands  d.1907 Reeuwijk, Netherlands			Trijntje van Vliet  b.1838 Reeuwijk, Netherlands  d.1900 Reeuwijk, Netherlands
			Jacoba Plak  b.1895 Reeuwijk, Netherlands  d.1968 Waddinxvee, Netherlands
				Adriana Verweij  b.1876 Reeuwijk, Netherlands  d.1955 Reeuwijk, Netherlands

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