January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
April 2 » "Electric Theatre", the first full-time movie theater in the United States, opens in Los Angeles.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
August 9 » Edward VII and Alexandra of Denmark are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
Day of death July 20, 1985
The temperature on July 20, 1985 was between 11.1 °C and 18.9 °C and averaged 15.1 °C. There was 1.5 mm of rain during 0.9 hours. There was 6.2 hours of sunshine (38%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. 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 28 » Supergroup USA for Africa (United Support of Artists for Africa) records the hit single We Are the World, to help raise funds for Ethiopian famine relief.
March 3 » A magnitude 8.3 earthquake strikes the Valparaíso Region of Chile, killing 177 and leaving nearly a million people homeless.
June 17 » Space Shuttle program: STS-51-G mission: Space Shuttle Discovery launches carrying Sultan bin Salman bin Abdulaziz Al Saud, the first Arab and first Muslim in space, as a payload specialist.
August 12 » Japan Airlines Flight 123 crashes into Osutaka ridge in Gunma Prefecture, Japan, killing 520, to become the worst single-plane air disaster.
October 6 » Police constable Keith Blakelock is murdered as riots erupt in the Broadwater Farm suburb of London.
November 19 » Police in Baling, Malaysia, lay siege to houses occupied by an Islamic sect of about 400 people led by Ibrahim Mahmud.
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/I211843.php : accessed February 18, 2026), "Jacobus Holwerda (1902-1985)".
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