February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
July 9 » The Federation of Australia is given royal assent.
November 7 » The People's Party is founded in Cuba.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage April 20, 1921
The temperature on April 20, 1921 was between -1.6 °C and 10.4 °C and averaged 5.0 °C. There was 4.1 mm of rain. There was 4.9 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death December 5, 1994
The temperature on December 5, 1994 was between 7.7 °C and 10.9 °C and averaged 9.5 °C. There was 1.2 mm of rain during 1.2 hours. There was 1.5 hours of sunshine (19%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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.
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
January 17 » The 6.7 Mw Northridge earthquake shakes the Greater Los Angeles Area with a maximum Mercalli intensity of IX (Violent), leaving 57 people dead and more than 8,700 injured.
April 4 » Marc Andreessen and Jim Clark found Netscape Communications Corporation under the name Mosaic Communications Corporation.
August 31 » Russia completes removing its troops from Estonia.
October 14 » Yasser Arafat, Yitzhak Rabin and Shimon Peres receive the Nobel Peace Prize for their role in the establishment of the Oslo Accords and the framing of future Palestinian self government.
October 17 » Russian journalist Dmitry Kholodov is assassinated while investigating corruption in the armed forces.
December 31 » The First Chechen War: The Russian Ground Forces begin a New Year's storming of Grozny.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Jan Thonis", database, Genealogy Online (https://www.genealogieonline.nl/jan-thonis/I98020.php : accessed February 25, 2026), "Jannetje Davelaar (1900-1994)".
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