February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of marriage July 21, 1943
The temperature on July 21, 1943 was between 16.0 °C and 22.9 °C and averaged 18.8 °C. There was 0.5 mm of rain during 0.3 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 19 » Albert Hofmann deliberately doses himself with LSD for the first time, three days after having discovered its effects on April 16.
August 28 » Denmark in World War II: German authorities demand that Danish authorities crack down on acts of resistance. The next day, martial law is imposed on Denmark.
September 3 » World War II: The Allied invasion of Italy begins on the same day that U.S. General Dwight D. Eisenhower and Italian Marshal Pietro Badoglio sign the Armistice of Cassibile aboard the Royal Navy battleship HMSNelson off Malta.
September 18 » World War II: Adolf Hitler orders the deportation of Danish Jews.
October 19 » Streptomycin, the first antibiotic remedy for tuberculosis, is isolated by researchers at Rutgers University.
December 15 » World War II: The Battle of Arawe begins during the New Britain campaign.
Day of death December 26, 1979
The temperature on December 26, 1979 was between -1.0 °C and 0.1 °C and averaged -0.4 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
March 16 » Sino-Vietnamese War: The People's Liberation Army crosses the border back into China, ends the war.
March 26 » Anwar al-Sadat, Menachem Begin and Jimmy Carter sign the Egypt–Israel Peace Treaty in Washington, D.C.
July 11 » America's first space station, Skylab, is destroyed as it re-enters the Earth's atmosphere over the Indian Ocean.
September 13 » South Africa grants independence to the "homeland" of Venda (not recognised outside South Africa).
November 3 » Greensboro massacre: Five members of the Communist Workers Party are shot dead and seven are wounded by a group of Klansmen and neo-Nazis during a "Death to the Klan" rally in Greensboro, North Carolina, United States.
December 21 » Lancaster House Agreement: An independence agreement for Rhodesia is signed in London by Lord Carrington, Sir Ian Gilmour, Robert Mugabe, Joshua Nkomo, Bishop Abel Muzorewa and S.C. Mundawarara.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I346583.php : accessed March 6, 2026), "Geert Potgieter (1897-1979)".
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