January 9 » Hallam Tennyson, 2nd Baron Tennyson, son of the poet Alfred Tennyson, becomes the second Governor-General of Australia.
March 2 » In New York City the Martha Washington Hotel opens, becoming the first hotel exclusively for women.
March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
July 4 » The Philippine–American War is officially concluded.
October 6 » The High Court of Australia sits for the first time.
Day of death August 13, 1981
The temperature on August 13, 1981 was between 10.7 °C and 23.8 °C and averaged 17.8 °C. There was 3.6 hours of sunshine (24%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the ??. 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 28 » Ronald Reagan lifts remaining domestic petroleum price and allocation controls in the United States helping to end the 1979 energy crisis and begin the 1980s oil glut.
February 24 » The 6.7 Ms Gulf of Corinth earthquake affected Central Greece with a maximum Mercalli intensity of VIII (Severe). Twenty-two people were killed, 400 were injured, and damage totaled $812million.
May 21 » The Italian government releases the membership list of Propaganda Due, an illegal pseudo-Masonic lodge that was implicated in numerous Italian crimes and mysteries.
July 30 » As many as 50,000 demonstrators, mostly women and children, took to the streets in Łódź to protest food ration shortages in Communist Poland.
September 18 » The Assemblée Nationale votes to abolish capital punishment in France.
December 1 » Inex-Adria Aviopromet Flight 1308, a McDonnell Douglas MD-80, crashes in Corsica, killing all 180 people on board.
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/I139119.php : accessed February 13, 2026), "Pieter Ladenius (1903-1981)".
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