February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
March 16 » Sir Arthur Evans purchased the land around the ruins of Knossos, the largest Bronze Age archaeological site on Crete.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
July 9 » The Federation of Australia is given royal assent.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 18 » The Upper Ferntree Gully to Gembrook, Victoria Narrow-gauge (2ft 6 in or 762mm) Railway (now the Puffing Billy Railway) in Victoria, Australia is opened for traffic.
Day of death April 13, 1981
The temperature on April 13, 1981 was between 4.2 °C and 14.8 °C and averaged 9.8 °C. There was 2.9 hours of sunshine (21%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 21 » Production of the iconic DeLorean sports car begins in Dunmurry, Northern Ireland, United Kingdom.
February 8 » Twenty-one association football spectators are trampled to death at Karaiskakis Stadium in Neo Faliro, Greece, after a football match between Olympiacos F.C. and AEK Athens F.C.
July 17 » A structural failure leads to the collapse of a walkway at the Hyatt Regency in Kansas City, Missouri, killing 114 people and injuring more than 200.
August 25 » Voyager 2 spacecraft makes its closest approach to Saturn.
October 27 » Cold War: The Soviet submarine S-363 runs aground on the east coast of Sweden.
December 13 » General Wojciech Jaruzelski declares martial law in Poland, largely due to the actions by Solidarity.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I77546.php : accessed September 29, 2026), "Sipke van der Wal (1900-1981)".
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