The temperature on May 22, 1911 was between 4.7 °C and 14.0 °C and averaged 9.2 °C. There was 3.1 hours of sunshine (19%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
January 21 » The first Monte Carlo Rally takes place.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
Day of marriage May 18, 1933
The temperature on May 18, 1933 was between 1.8 °C and 16.4 °C and averaged 10.6 °C. There was 12.1 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
April 5 » U.S. President Franklin D. Roosevelt signs two executive orders: 6101 to establish the Civilian Conservation Corps, and 6102 "forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates" by U.S. citizens.
September 3 » Yevgeniy Abalakov is the first man to reach the highest point in the Soviet Union, Communism Peak (now called Ismoil Somoni Peak and situated in Tajikistan) (7495 m).
September 12 » Leó Szilárd, waiting for a red light on Southampton Row in Bloomsbury, conceives the idea of the nuclear chain reaction.
September 26 » As gangster Machine Gun Kelly surrenders to the FBI, he shouts out, "Don't shoot, G-Men!", which becomes a nickname for FBI agents.
November 15 » Thailand has its first election.
November 17 » The United States recognizes the Soviet Union.
Day of death June 30, 1997
The temperature on June 30, 1997 was between 12.1 °C and 15.8 °C and averaged 14.3 °C. There was 0.2 mm of rain during 0.3 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
January 21 » The U.S. House of Representatives votes 395–28 to reprimand Newt Gingrich for ethics violations, making him the first Speaker of the House to be so disciplined.
February 7 » NeXT merges with Apple Computer, starting the path to Mac OS X.
May 19 » The Sierra Gorda biosphere, the most ecologically diverse region in Mexico, is established as a result of grassroots efforts.
July 5 » Sri Lankan Civil War: Sri Lankan Tamil MP A. Thangathurai is shot dead at Sri Shanmuga Hindu Ladies College in Trincomalee.
August 31 » Diana, Princess of Wales, her companion Dodi Fayed and driver Henri Paul die in a car crash in Paris.
December 30 » In the worst incident in Algeria's insurgency, the Wilaya of Relizane massacres, 400 people from four villages are killed.
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/I93482.php : accessed October 18, 2026), "Trientje de Wit (1911-1997)".
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