The temperature on January 18, 1915 was between -1.5 °C and 2.9 °C and averaged 0.4 °C. There was 1.0 mm of rain. There was 2.9 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
May 17 » The last British Liberal Party government (led by H. H. Asquith) falls.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death July 25, 1976
The temperature on July 25, 1976 was between 11.5 °C and 20.5 °C and averaged 16.3 °C. There was -0.1 mm of rain. There was 9.9 hours of sunshine (62%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
April 5 » In China, the April Fifth Movement leads to the Tiananmen Incident.
June 16 » Soweto uprising: A non-violent march by 15,000 students in Soweto, South Africa, turns into days of rioting when police open fire on the crowd.
July 1 » Portugal grants autonomy to Madeira.
July 17 » The opening of the Summer Olympics in Montreal is marred by 25 African teams boycotting the games because of New Zealand's participation. Contrary to rulings by other international sports organizations, the IOC had declined to exclude New Zealand because of their participation in South African sporting events during apartheid.
October 6 » Dozens are killed by the Thai army in the Thammasat University massacre.
December 3 » An assassination attempt is made on Bob Marley in Kingston, Jamaica just two days before the "Smile Jamaica", a free concert.
When copying data from this family tree, please include a reference to the origin: Joep Klinkenberg, "Family tree Klinkenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-klinkenberg/I181.php : accessed January 19, 2026), "Jo Bertens Harren (1915-1976)".
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