January 31 » Czechoslav Trade Union Association is founded in Prague.
February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage February 12, 1916
The temperature on February 12, 1916 was between -1.6 °C and 2.6 °C and averaged 1.0 °C. There was 3.7 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 29 » World War I: The UK's 6th Indian Division surrenders to Ottoman Forces at the Siege of Kut in one of the largest surrenders of British forces up to that point.
May 6 » Vietnamese Emperor Duy Tân is captured while calling upon the people to rise up against the French, and is later deposed and exiled to Réunion island.
June 10 » The Arab Revolt against the Ottoman Empire was declared by Hussein bin Ali, Sharif of Mecca.
August 17 » World War I: Romania signs a secret treaty with the Entente Powers. According to the treaty, Romania agreed to join the war on the Allied side.
September 15 » World War I: Tanks are used for the first time in battle, at the Battle of the Somme.
November 18 » World War I: First Battle of the Somme: In France, British Expeditionary Force commander Douglas Haig calls off the battle which started on July 1, 1916.
Day of death June 4, 1970
The temperature on June 4, 1970 was between 8.2 °C and 20.5 °C and averaged 15.0 °C. There was 13.3 hours of sunshine (81%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 1 » The defined beginning of Unix time, at 00:00:00.
May 1 » Vietnam War: Protests erupt following the announcement by Richard Nixon that the U.S. and South Vietnamese forces would attack Vietnamese communists in a Cambodian Campaign.
September 7 » Bill Shoemaker beats Johnny Longden's record to become the winningest jockey in horse racing history at Del Mar racetrack
October 10 » Fiji becomes independent.
October 12 » Vietnam War: Vietnamization continues as President Nixon announces that the United States will withdraw 40,000 more troops before Christmas.
October 17 » FLQ terrorists murder Quebec Vice-Premier and Minister of Labour Pierre Laporte.
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/I5735.php : accessed February 14, 2026), "Martje de Haan (1897-1970)".
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