The temperature on September 30, 1910 was between 4.9 °C and 18.2 °C and averaged 12.9 °C. There was 5.8 mm of rain. There was 4.4 hours of sunshine (37%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
October 20 » The hull of the RMSOlympic, sister-ship to the ill-fated RMS Titanic, is launched from the Harland and Wolff shipyard in Belfast.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
Day of marriage June 22, 1938
The temperature on June 22, 1938 was between 8.3 °C and 22.7 °C and averaged 16.7 °C. There was 11.4 hours of sunshine (68%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
March 27 » Second Sino-Japanese War: The Battle of Taierzhuang begins, resulting several weeks later in the war's first major Chinese victory over Japan.
July 20 » The United States Department of Justice files suit in New York City against the motion picture industry charging violations of the Sherman Antitrust Act in regards to the studio system. The case would eventually result in a break-up of the industry in 1948.
September 5 » Chile: A group of youths affiliated with the fascist National Socialist Movement of Chile are executed after surrendering during a failed coup.
September 23 » The Czechoslovak army is mobilized in response to the Munich Agreement.
October 5 » In Nazi Germany, Jews' passports are invalidated.
October 10 » Abiding by the Munich Agreement, Czechoslovakia completes its withdrawal from the Sudetenland.
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/I139670.php : accessed February 15, 2026), "Wybe van der Werf (1910-)".
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