In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 31 » History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
February 15 » Allmänna Idrottsklubben (AIK) (Swedish Sports Club) is founded.
March 17 » SSUtopia collides with HMSAnson in the Bay of Gibraltar and sinks, killing 562 of the 880 passengers on board.
May 15 » Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
August 16 » The Basilica of San Sebastian, Manila, the first all-steel church in Asia, is officially inaugurated and blessed.
October 1 » Stanford University opens its doors in California, United States.
Day of marriage April 8, 1915
The temperature on April 8, 1915 was between 2.8 °C and 11.0 °C and averaged 7.0 °C. There was 7.9 hours of sunshine (59%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
January 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
March 20 » Albert Einstein publishes his general theory of relativity.
April 24 » The arrest of 250 Armenian intellectuals and community leaders in Istanbul marks the beginning of the Armenian Genocide.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
September 5 » The pacifist Zimmerwald Conference begins.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
Day of death February 20, 1945
The temperature on February 20, 1945 was between 2.9 °C and 9.7 °C and averaged 7.8 °C. There was 2.8 mm of rain during 5.1 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
April 29 » World War II: Airdrops of food begin over German-occupied regions of the Netherlands.
May 5 » World War II: Dönitz gives Löhr permission to seek an armistice with the Western Allies to preserve a communist free Austria and recognising first, from a German standpoint, the separation of Austria from Germany undoing the Anschluss.
May 9 » World War II: The final German Instrument of Surrender is signed at the Soviet headquarters in Berlin-Karlshorst.
August 2 » World War II: End of the Potsdam Conference.
October 25 » Fifty years of Japanese administration of Taiwan formally ends when the Republic of China assumes control.
October 30 » Jackie Robinson of the Kansas City Monarchs signs a contract for the Brooklyn Dodgers, breaking the baseball color line.
When copying data from this family tree, please include a reference to the origin: Marieke Cooper, "Family tree Cooper, Kooper, Oostwal, Robert, Ooteman en Blokland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cooper/I3893.php : accessed March 6, 2026), "Ruben Velleman (1891-1945)".
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