February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
June 18 » Empress Dowager Cixi of China orders all foreigners killed, including foreign diplomats and their families.
July 19 » The first line of the Paris Métro opens for operation.
November 7 » The People's Party is founded in Cuba.
Day of death June 29, 1920
The temperature on June 29, 1920 was between 15.0 °C and 24.5 °C and averaged 18.6 °C. There was 1.1 mm of rain. There was 4.8 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
March 28 » Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
April 23 » The Grand National Assembly of Turkey (TBMM) is founded in Ankara. The assembly denounces the government of Sultan Mehmed VI and announces the preparation of a temporary constitution.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
November 15 » The Free City of Danzig is established.
December 22 » The GOELRO economic development plan is adopted by the 8th Congress of Soviets of the Russian SFSR.
When copying data from this family tree, please include a reference to the origin: Makbouli, "Family tree Jonker, van den Burg, Half, Mol, Schaaders, e.a.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jonker-ea/R577.php : accessed February 16, 2026), "Willem Schipper (-1920)".
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