March 1 » Henri Becquerel discovers radioactive decay.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
May 18 » Khodynka Tragedy: A mass panic on Khodynka Field in Moscow during the festivities of the coronation of Russian Tsar Nicholas II results in the deaths of 1,389 people.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
Day of marriage November 16, 1917
The temperature on November 16, 1917 was between 3.7 °C and 9.9 °C and averaged 7.4 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
February 23 » First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution (March 8 in the Gregorian calendar).
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
August 30 » Vietnamese prison guards led by Trịnh Văn Cấn mutiny at the Thái Nguyên penitentiary against local French authority.
October 12 » World War I: The First Battle of Passchendaele takes place resulting in the largest single-day loss of life in New Zealand history.
November 8 » The first Council of People's Commissars is formed, including Vladimir Lenin, Leon Trotsky and Joseph Stalin.
November 25 » World War I: German forces defeat Portuguese army of about 1,200 at Negomano on the border of modern-day Mozambique and Tanzania.
Day of death December 20, 1981
The temperature on December 20, 1981 was between -6.4 °C and -1.3 °C and averaged -3.6 °C. There was 0.3 hours of sunshine (4%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I222817.php : accessed January 18, 2026), "Petronella Hendriks (1896-1981)".
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