The temperature on January 6, 1912 was between 0.2 °C and 5.5 °C and averaged 3.2 °C. There was 9.7 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
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 7 » The Helsinki Stock Exchange sees its first transaction.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
December 6 » The Nefertiti Bust is discovered.
Day of marriage June 9, 1934
The temperature on June 9, 1934 was between 7.1 °C and 22.1 °C and averaged 15.6 °C. There was 14.5 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 1 » A "Law for the Prevention of Genetically Diseased Offspring" comes into effect in Nazi Germany.
January 26 » German–Polish Non-Aggression Pact is signed.
April 21 » The "Surgeon's Photograph", the most famous photo allegedly showing the Loch Ness Monster, is published in the Daily Mail (in 1999, it is revealed to be a hoax).
September 22 » The Gresford disaster in Wales kills 266 miners and rescuers.
October 9 » An Ustashe assassin kills King Alexander I of Yugoslavia and Louis Barthou, Foreign Minister of France, in Marseille.
November 23 » An Anglo-Ethiopian boundary commission in the Ogaden discovers an Italian garrison at Walwal, well within Ethiopian territory. This leads to the Abyssinia Crisis.
Day of death June 21, 2001
The temperature on June 21, 2001 was between 11.0 °C and 19.2 °C and averaged 14.9 °C. There was 8.4 hours of sunshine (50%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 20 » George W. Bush is inaugurated the 43rd President of the United States of America.
February 12 » NEAR Shoemaker spacecraft touches down in the "saddle" region of 433 Eros, becoming the first spacecraft to land on an asteroid.
February 15 » The first draft of the complete human genome is published in Nature.
April 1 » Former President of Federal Republic of Yugoslavia Slobodan Milošević surrenders to police special forces, to be tried on war crimes charges.
May 6 » During a trip to Syria, Pope John Paul II becomes the first pope to enter a mosque.
September 2 » The adult-oriented television block Adult Swim debuts on Cartoon Network.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I5905.php : accessed February 14, 2026), "Pietrikje Boersma (1912-2001)".
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