March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
April 26 » Atlético Madrid Association football club is founded
June 19 » Benito Mussolini, at the time a radical Socialist, is arrested by Bern police for advocating a violent general strike.
July 20 » The Ford Motor Company ships its first automobile.
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.
Day of death August 20, 1984
The temperature on August 20, 1984 was between 13.1 °C and 28.8 °C and averaged 20.9 °C. There was 11.5 hours of sunshine (80%). The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 10 » Holy See–United States relations: The United States and Holy See (Vatican City) re-establish full diplomatic relations after almost 117 years, overturning the United States Congress's 1867 ban on public funding for such a diplomatic envoy.
March 16 » William Buckley, the CIA station chief in Lebanon, is kidnapped by Hezbollah. (He later dies in captivity.)
April 19 » Advance Australia Fair is proclaimed as Australia's national anthem, and green and gold as the national colours.
June 5 » Operation Blue Star: Under orders from India's prime minister, Indira Gandhi, the Indian Army begins an invasion of the Golden Temple, the holiest site of the Sikh religion.
December 4 » Sri Lankan Civil War: Sri Lankan Army soldiers kill 107–150 civilians in Mannar.
December 20 » The Summit Tunnel fire, one of the largest transportation tunnel fires in history, burns after a freight train carrying over one million liters of gasoline derails near the town of Todmorden, England, in the Pennines.
When copying data from this family tree, please include a reference to the origin: Monica Slump, "Family tree family Slump - Oostwald - Claasen - Geervliet", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-slump/I18.php : accessed February 16, 2026), "Jantje Slump (1903-1984)".
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.