The temperature on May 11, 1911 was between 10.3 °C and 22.5 °C and averaged 16.5 °C. There was 11.2 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 23 » The New York Public Library is dedicated.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of marriage June 30, 1944
The temperature on June 30, 1944 was between 11.0 °C and 17.7 °C and averaged 14.7 °C. There was 2.3 mm of rain during 2.6 hours. There was 3.0 hours of sunshine (18%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 10 » Greek Civil War: The Political Committee of National Liberation is established in Greece by the National Liberation Front.
April 24 » World War II: The SBS launches a raid against the garrison of Santorini in Greece.
July 6 » The Hartford circus fire, one of America's worst fire disasters, kills approximately 168 people and injures over 700 in Hartford, Connecticut.
September 11 » World War II: The Western Allied invasion of Germany begins near the city of Aachen.
September 13 » World War II: Start of the Battle of Meligalas between the Greek Resistance forces of the Greek People's Liberation Army (ELAS) and the collaborationist security battalions.
December 31 » World War II: Hungary declares war on Nazi Germany.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I306.php : accessed February 19, 2026), "Cornelis Wilhelmus van Willigen (1911-)".
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