The temperature on May 31, 1905 was between 11.6 °C and 21.0 °C and averaged 15.1 °C. There was 4.6 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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.
April 4 » In India, an earthquake hits the Kangra Valley, killing 20,000, and destroying most buildings in Kangra, McLeod Ganj and Dharamshala.
April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
June 27 » During the Russo-Japanese War, sailors start a mutiny aboard the Russian battleship Potemkin.
August 13 » Norwegians vote to end the union with Sweden.
September 1 » Alberta and Saskatchewan join the Canadian confederation.
November 25 » Prince Carl of Denmark arrives in Norway to become King Haakon VII of Norway.
Day of death May 21, 1991
The temperature on May 21, 1991 was between 12.7 °C and 18.4 °C and averaged 15.1 °C. There was 1.9 hours of sunshine (12%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
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 7 » Roger Lafontant, former leader of the Tonton Macoute in Haiti under François Duvalier, attempts a coup d'état, which ends in his arrest.
May 18 » Northern Somalia declares independence from the rest of Somalia as the Republic of Somaliland but is not recognized by the international community.
May 26 » Zviad Gamsakhurdia becomes the first elected President of the Republic of Georgia in the post-Soviet era.
August 25 » Belarus gains its independence from the Soviet Union.
October 11 » Prof. Anita Hill delivers her televised testimony concerning sexual harassment during the Clarence Thomas Supreme Court nomination.
October 15 » The "Oh-My-God particle", an ultra-high-energy cosmic ray measured at 40,000,000 times that of the highest energy protons produced in a particle accelerator is observed at the University of Utah HiRes observatory in Dugway Proving Ground, Utah.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I14843.php : accessed February 18, 2026), "Jan Heimensen (1905-1991)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.