The temperature on April 10, 1915 was between 2.1 °C and 10.0 °C and averaged 5.8 °C. There was 2.2 mm of rain. There was 4.3 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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.
January 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
February 19 » World War I: The first naval attack on the Dardanelles begins when a strong Anglo-French task force bombards Ottoman artillery along the coast of Gallipoli.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
July 5 » The Liberty Bell leaves Philadelphia by special train on its way to the Panama–Pacific International Exposition. This is the last trip outside Philadelphia that the custodians of the bell intend to permit.
July 7 » Colombo Town Guard officer Henry Pedris is executed in British Ceylon for allegedly inciting persecution of Muslims.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
Day of death July 21, 1973
The temperature on July 21, 1973 was between 13.1 °C and 20.0 °C and averaged 15.8 °C. There was 1.2 mm of rain during 1.3 hours. There was 3.9 hours of sunshine (24%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
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 1 » Project Tiger, a tiger conservation project, is launched in the Jim Corbett National Park, India.
June 20 » Aeroméxico Flight 229 crashes on approach to Licenciado Gustavo Díaz Ordaz International Airport, killing all 27 people on board.
June 23 » A fire at a house in Hull, England, which kills a six-year-old boy is passed off as an accident; it later emerges as the first of 26 deaths by fire caused over the next seven years by serial arsonist Peter Dinsdale.
September 24 » Guinea-Bissau declares its independence from Portugal.
September 26 » Concorde makes its first non-stop crossing of the Atlantic in record-breaking time.
October 6 » Egypt and Syria launch coordinated attacks against Israel, beginning the Yom Kippur War.
When copying data from this family tree, please include a reference to the origin: Hendrik Jan Morrien, "Family tree Morrien", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-morrien/I281.php : accessed January 20, 2026), "Willem Johannis "Wim" de Beer (1915-1973)".
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