The temperature on August 21, 1944 was between 12.0 °C and 23.6 °C and averaged 18.4 °C. There was 0.1 mm of rain. There was 3.2 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-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.
January 31 » World War II: American forces land on Kwajalein Atoll and other islands in the Japanese-held Marshall Islands.
May 18 » Deportation of Crimean Tatars by the Soviet Union government.
May 18 » World War II: Battle of Monte Cassino: Conclusion after seven days of the fourth battle as German paratroopers evacuate Monte Cassino.
August 24 » World War II: Allied troops begin the attack on Paris.
August 26 » World War II: Charles de Gaulle enters Paris.
October 20 » Liquefied natural gas leaks from storage tanks in Cleveland and then explodes, leveling 30 blocks and killing 130 people.
Day of death September 20, 1971
The temperature on September 20, 1971 was between 4.4 °C and 22.6 °C and averaged 13.2 °C. There was 0.1 mm of rain. There was 7.4 hours of sunshine (60%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 21 » The current Emley Moor transmitting station, the tallest free-standing structure in the United Kingdom, begins transmitting UHF broadcasts.
February 9 » The 6.5–6.7 Mw Sylmar earthquake hits the Greater Los Angeles Area with a maximum Mercalli intensity of XI (Extreme), killing 64 and injuring 2,000.
March 18 » Peru: a landslide crashes into Yanawayin Lake, killing 200 people at the mining camp of Chungar.
March 29 » My Lai Massacre: Lieutenant William Calley is convicted of premeditated murder and sentenced to life in prison.
September 8 » In Washington, D.C., the John F. Kennedy Center for the Performing Arts is inaugurated, with the opening feature being the premiere of Leonard Bernstein's Mass.
December 7 » Pakistan President Yahya Khan announces the formation of a coalition government with Nurul Amin as Prime Minister and Zulfikar Ali Bhutto as Deputy Prime Minister.
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/I62844.php : accessed February 15, 2026), "Herman Kuper (1944-1971)".
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