The temperature on December 31, 1911 was between 0.3 °C and 5.5 °C and averaged 3.4 °C. There was 0.1 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 6 » During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti (Skanderbeg).
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
Day of marriage January 29, 1931
The temperature on January 29, 1931 was between -0.1 °C and 5.2 °C and averaged 2.1 °C. There was 3.2 mm of rain during 4.0 hours. There was 0.7 hours of sunshine (8%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 7 » Guy Menzies flies the first solo non-stop trans-Tasman flight (from Australia to New Zealand) in 11 hours and 45 minutes, crash-landing on New Zealand's west coast.
February 3 » The Hawke's Bay earthquake, New Zealand's worst natural disaster, kills 258.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 26 » Ho Chi Minh Communist Youth Union is founded in Vietnam.
October 17 » Al Capone is convicted of income tax evasion.
Day of death July 20, 1989
The temperature on July 20, 1989 was between 7.8 °C and 24.8 °C and averaged 17.8 °C. There was 14.1 hours of sunshine (88%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 6 » Satwant Singh and Kehar Singh are sentenced to death for conspiracy in the assassination of Prime Minister Indira Gandhi; the two men are executed the same day.
February 10 » Ron Brown is elected chairman of the Democratic National Committee becoming the first African American to lead a major American political party.
June 3 » The government of China sends troops to force protesters out of Tiananmen Square after seven weeks of occupation.
August 16 » A solar particle event affects computers at the Toronto Stock Exchange, forcing a halt to trading.
December 16 » U.S. Appeals Court Judge Robert Smith Vance is assassinated by a mail bomb sent by Walter Leroy Moody, Jr.
December 27 » The Romanian Revolution concludes, as the last minor street confrontations and stray shootings abruptly end in the country's capital, Bucharest.
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The Family tree Van Dijk publication was prepared by wijlen Jan van Dijk (contact is not possible).
When copying data from this family tree, please include a reference to the origin: wijlen Jan van Dijk, "Family tree Van Dijk", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-dijk/I2196.php : accessed January 22, 2026), "Hermanna Halfwerk (1911-1989)".
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