The temperature on January 16, 1931 was between 6.0 °C and 8.9 °C and averaged 7.5 °C. There was 9.5 mm of rain during 6.7 hours. The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-southwest. 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.
March 26 » Swissair is founded as the national airline of Switzerland.
May 1 » The Empire State Building is dedicated in New York City.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
October 1 » Clara Campoamor persuades the Constituent Cortes to enfranchise women in Spain's new constitution.
October 1 » The George Washington Bridge in the United States, linking New Jersey and New York, is opened.
October 17 » Al Capone is convicted of income tax evasion.
Day of marriage August 16, 1957
The temperature on August 16, 1957 was between 12.7 °C and 14.9 °C and averaged 13.7 °C. There was 19.6 mm of rain during 9.1 hours. There was 0.2 hours of sunshine (1%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 29 » The New York, Ontario and Western Railway makes its final run, the first major U.S. railroad to be abandoned in its entirety.
July 29 » The International Atomic Energy Agency is established.
August 31 » The Federation of Malaya (now Malaysia) gains its independence from the United Kingdom.
September 5 » Cuban Revolution: Fulgencio Batista bombs the revolt in Cienfuegos.
October 1 » First appearance of In God we trust on U.S. paper currency.
October 4 » Sputnik 1 becomes the first artificial satellite to orbit the Earth.
Day of death May 4, 1971
The temperature on May 4, 1971 was between 2.3 °C and 18.5 °C and averaged 12.2 °C. There was 8.5 hours of sunshine (56%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
February 2 » The international Ramsar Convention for the conservation and sustainable utilization of wetlands is signed in Ramsar, Mazandaran, Iran.
February 8 » The NASDAQ stock market index opens for the first time.
February 27 » Doctors in the first Dutch abortion clinic (the Mildredhuis in Arnhem) start performing artificially-induced abortions.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
August 5 » The first Pacific Islands Forum (then known as the "South Pacific Forum") is held in Wellington, New Zealand, with the aim of enhancing cooperation between the independent countries of the Pacific Ocean.
December 6 » Pakistan severs diplomatic relations with India, initiating the Indo-Pakistani War of 1971.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Jan Thonis", database, Genealogy Online (https://www.genealogieonline.nl/jan-thonis/I78956.php : accessed January 9, 2026), "Johannes van de Pol (1931-1971)".
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