The temperature on June 19, 1905 was between 7.2 °C and 22.2 °C and averaged 16.0 °C. There was 8.2 hours of sunshine (49%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 22 » Bloody Sunday in Saint Petersburg, beginning of the 1905 revolution.
February 23 » Chicago attorney Paul Harris and three other businessmen meet for lunch to form the Rotary Club, the world's first service club.
April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
May 15 » Las Vegas is founded when 110 acres (0.45km), in what later would become downtown, are auctioned off.
June 7 » Norway's parliament dissolves its union with Sweden. The vote was confirmed by a national plebiscite on August 13 of that year.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
Day of marriage March 27, 1937
The temperature on March 27, 1937 was between -1.8 °C and 6.1 °C and averaged 1.9 °C. There was 2.4 mm of rain during 1.2 hours. There was 3.5 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 20 » Franklin D. Roosevelt and John Nance Garner are sworn in for their second terms as U.S. President and U.S. Vice President; it is the first time a Presidential Inauguration takes place on January 20 since the 20th Amendment changed the dates of presidential terms.
February 11 » The Flint sit-down strike ends when General Motors recognizes the United Auto Workers trade union.
March 8 » Spanish Civil War: The Battle of Guadalajara begins.
April 26 » Spanish Civil War: Guernica, Spain, is bombed by German Luftwaffe.
October 11 » The Duke and Duchess of Windsor tour Nazi Germany for 12 days and meet Adolf Hitler on the 22nd.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I10509.php : accessed February 21, 2026), "Abraham Koops (1905-)".
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