The temperature on June 21, 1887 was about 15.9 °C. The air pressure was 34 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 62%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
April 10 » On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.
May 9 » Buffalo Bill Cody's Wild West Show opens in London.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of marriage May 17, 1919
The temperature on May 17, 1919 was between 6.6 °C and 21.9 °C and averaged 14.9 °C. There was 13.6 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
May 4 » May Fourth Movement: Student demonstrations take place in Tiananmen Square in Beijing, China, protesting the Treaty of Versailles, which transferred Chinese territory to Japan.
June 2 » Anarchists simultaneously set off bombs in eight separate U.S. cities.
June 7 » Sette Giugno: Nationalist riots break out in Valletta, the capital of Malta. British soldiers fire into the crowd, killing four people.
September 4 » Mustafa Kemal Atatürk, who founded the Republic of Turkey, gathers a congress in Sivas to make decisions as to the future of Anatolia and Thrace.
November 28 » Lady Astor is elected as a Member of the Parliament of the United Kingdom. She is the first woman to sit in the House of Commons. (Countess Markievicz, the first to be elected, refused to sit.)
Day of death October 20, 1955
The temperature on October 20, 1955 was between 9.6 °C and 18.3 °C and averaged 13.0 °C. There was 6.1 mm of rain during 2.3 hours. There was 3.7 hours of sunshine (36%). The partly or heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. Source: KNMI
April 15 » McDonald's restaurant dates its founding to the opening of a franchised restaurant by Ray Kroc, in Des Plaines, Illinois.
April 24 » The Bandung Conference ends: Twenty-nine non-aligned nations of Asia and Africa finish a meeting that condemns colonialism, racism, and the Cold War.
May 14 » Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
June 11 » Eighty-three spectators are killed and at least 100 are injured after an Austin-Healey and a Mercedes-Benz collide at the 24 Hours of Le Mans, the deadliest ever accident in motorsports.
November 1 » The Vietnam War begins.
December 1 » American Civil Rights Movement: In Montgomery, Alabama, seamstress Rosa Parks refuses to give up her bus seat to a white man and is arrested for violating the city's racial segregation laws, an incident which leads to that city's bus boycott.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I61412.php : accessed October 14, 2026), "Thomas Laanstra (1887-1955)".
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