The temperature on October 10, 1911 was between 3.5 °C and 13.8 °C and averaged 8.7 °C. There was 8.5 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
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.
May 23 » The New York Public Library is dedicated.
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 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
Day of marriage May 20, 1932
The temperature on May 20, 1932 was between 13.4 °C and 25.1 °C and averaged 19.0 °C. There was 4.9 hours of sunshine (31%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
July 1 » Australia's national broadcaster, the Australian Broadcasting Corporation, was formed.
July 20 » In the Preußenschlag, German President Hindenburg places Prussia directly under the rule of the national government.
August 10 » A 5.1 kilograms (11lb) chondrite-type meteorite breaks into at least seven pieces and lands near the town of Archie in Cass County, Missouri.
September 24 » Gandhi and Dr. Ambedkar agree to the Poona Pact, which reserved seats in the Indian provincial legislatures for the "Depressed Classes" (Untouchables).
November 24 » In Washington, D.C., the FBI Scientific Crime Detection Laboratory (better known as the FBI Crime Lab) officially opens.
December 18 » The Chicago Bears defeat the Portsmouth Spartans in the first NFL playoff game to win the NFL Championship.
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/I89981.php : accessed March 3, 2026), "Roelof Ottens (1911-)".
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