The temperature on April 29, 1884 was about 11.6 °C. The air pressure was 1 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 70%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 19 » More than sixty tornadoes strike the Southern United States, one of the largest tornado outbreaks in U.S. history.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
July 5 » Germany takes possession of Cameroon.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
Day of marriage December 17, 1920
The temperature on December 17, 1920 was between -6.5 °C and -0.1 °C and averaged -2.5 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 15 » Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
May 5 » Authorities arrest Nicola Sacco and Bartolomeo Vanzetti for alleged robbery and murder.
May 16 » In Rome, Pope Benedict XV canonizes Joan of Arc.
June 4 » Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
July 20 » The Greek Army takes control of Silivri after Greece is awarded the city by the Paris Peace Conference; by 1923 Greece effectively lost control to the Turks.
November 2 » In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the 1920 United States presidential election.
Day of death July 1, 1947
The temperature on July 1, 1947 was between 11.4 °C and 20.6 °C and averaged 15.8 °C. There was 19.4 mm of rain during 1.1 hours. There was 3.2 hours of sunshine (19%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
February 23 » International Organization for Standardization is founded.
April 9 » United Nations Security Council Resolution 22 relating to Corfu Channel incident is adopted.
July 8 » Reports are broadcast that a UFO crash landed in Roswell, New Mexico in what became known as the Roswell UFO incident.
September 30 » Pakistan joins the United Nations.
September 30 » The 1947 World Series is the first to be televised, to include an African-American player, to exceed $2 million in receipts, to see a pinch-hit home run, and to have six umpires on the field.
November 30 » Civil War in Mandatory Palestine begins, leading up to the creation of the state of Israel.
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/I16103.php : accessed January 23, 2026), "Hindrik Onnes (1884-1947)".
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