The temperature on December 15, 1911 was between 3.0 °C and 8.9 °C and averaged 5.7 °C. There was 1.8 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
Day of marriage May 20, 1939
The temperature on May 20, 1939 was between 1.7 °C and 15.8 °C and averaged 9.1 °C. There was 12.2 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
August 15 » The Wizard of Oz premieres at Grauman's Chinese Theater in Los Angeles, California.
August 27 » First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.
September 17 » World War II: The Soviet invasion of Poland begins.
October 16 » World War II: No. 603 Squadron RAF intercepts the first Luftwaffe raid on Britain.
November 30 » Winter War: Soviet forces cross the Finnish border in several places and bomb Helsinki and several other Finnish cities, starting the war.
Day of death June 18, 1962
The temperature on June 18, 1962 was between 9.9 °C and 26.8 °C and averaged 19.2 °C. There was 1.9 mm of rain during 1.4 hours. There was 10.4 hours of sunshine (62%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
July 5 » The official independence of Algeria is proclaimed after an 8-year-long war with France.
August 5 » American actress Marilyn Monroe is found dead at her home from a drug overdose.
September 15 » The Soviet ship Poltava heads toward Cuba, one of the events that sets into motion the Cuban Missile Crisis.
September 20 » James Meredith, an African American, is temporarily barred from entering the University of Mississippi.
November 7 » Eleanor Roosevelt, wife and First Lady of the 32nd president of the United States Franklin D. Roosevelt, dies in her bed at her home in New York City.
November 11 » Kuwait's National Assembly ratifies the Constitution of Kuwait.
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/I119208.php : accessed October 23, 2026), "Willem Veenstra (1911-1962)".
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