The temperature on January 10, 1912 was between -0.1 °C and 4.7 °C and averaged 2.8 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
Day of marriage June 5, 1931
The temperature on June 5, 1931 was between 6.5 °C and 20.4 °C and averaged 13.6 °C. There was 13.4 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
September 18 » The Mukden Incident gives Japan a pretext to invade and occupy Manchuria.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
December 11 » Statute of Westminster 1931: The British Parliament establishes legislative equality between the UK and the Dominions of the Commonwealth—Australia, Canada, Newfoundland, New Zealand, South Africa, and Ireland.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I79524.php : accessed January 25, 2026), "Maartje Jansen (1912-)".
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