February 11 » Anton Bruckner's 9th Symphony receives its first performance in Vienna, Austria.
April 26 » Atlético Madrid Association football club is founded
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
October 6 » The High Court of Australia sits for the first time.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
October 31 » The Purdue Wreck, a railroad train collision in Indianapolis, kills 17 people, including 14 players of the Purdue University football team.
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.
March 30 » U.S. President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr.; three others are wounded in the same incident.
May 25 » In Riyadh, the Gulf Cooperation Council is created between Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates.
August 3 » Senegalese opposition parties, under the leadership of Mamadou Dia, launch the Antiimperialist Action Front – Suxxali Reew Mi.
August 10 » Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children.
August 19 » Gulf of Sidra Incident: United States fighters intercept and shoot down two Libyan Sukhoi Su-22 fighter jets over the Gulf of Sidra.
October 22 » The United States Federal Labor Relations Authority votes to decertify the Professional Air Traffic Controllers Organization (PATCO) for its strike the previous August.
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 October 23, 2026), "Pieter Ladenius (1903-1981)".
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.