January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
April 14 » The Exposition Universelle begins.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
Day of marriage May 20, 1922
The temperature on May 20, 1922 was between 7.9 °C and 17.3 °C and averaged 13.3 °C. There was 3.2 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 28 » The United Kingdom ends its protectorate over Egypt through a Unilateral Declaration of Independence.
April 16 » The Treaty of Rapallo, pursuant to which Germany and the Soviet Union re-establish diplomatic relations, is signed.
July 24 » The draft of the British Mandate of Palestine was formally confirmed by the Council of the League of Nations; it came into effect on 26 September 1923.
September 13 » The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.
October 19 » British Conservative MPs vote to terminate the coalition government with the Liberal Party.
November 14 » The British Broadcasting Company begins radio service in the United Kingdom.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I398685.php : accessed February 18, 2026), "Roelofje Eising (1900-)".
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