The temperature on November 6, 1938 was between 11.2 °C and 13.6 °C and averaged 12.2 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
June 7 » The Douglas DC-4E makes its first test flight.
July 31 » Archaeologists discover engraved gold and silver plates from King Darius the Great in Persepolis.
October 1 » Germany annexes the Sudetenland.
October 5 » In Nazi Germany, Jews' passports are invalidated.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
Day of marriage February 20, 1959
The temperature on February 20, 1959 was between -2.1 °C and 8.9 °C and averaged 3.6 °C. There was 0.4 mm of rain during 0.3 hours. There was 3.9 hours of sunshine (38%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 2 » Nine experienced ski hikers in the northern Ural Mountains in the Soviet Union die under mysterious circumstances.
June 8 » USSBarbero and the United States Postal Service attempt the delivery of mail via Missile Mail.
June 14 » Disneyland Monorail System, the first daily operating monorail system in the Western Hemisphere, opens to the public in Anaheim, California.
August 11 » Sheremetyevo International Airport, the second-largest airport in Russia, opens.
September 12 » Bonanza premieres, the first regularly scheduled TV program presented in color.
November 23 » French President Charles de Gaulle declares in a speech in Strasbourg his vision for "Europe, from the Atlantic to the Urals".
Day of death July 1, 2001
The temperature on July 1, 2001 was between 13.6 °C and 22.2 °C and averaged 18.2 °C. There was 13.6 hours of sunshine (82%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 13 » An earthquake hits El Salvador, killing more than 800.
June 5 » Tropical Storm Allison makes landfall on the upper-Texas coastline as a strong tropical storm and dumps large amounts of rain over Houston. The storm causes $5.5billion in damages, making Allison the second costliest tropical storm in U.S. history.
June 8 » Mamoru Takuma kills eight and injures 15 in a mass stabbing at an elementary school in the Osaka Prefecture of Japan.
September 4 » Tokyo DisneySea opens to the public as part of the Tokyo Disney Resort in Urayasu, Chiba, Japan.
September 18 » First mailing of anthrax letters from Trenton, New Jersey in the 2001 anthrax attacks.
November 12 » War in Afghanistan: Taliban forces abandon Kabul, ahead of advancing Afghan Northern Alliance troops.
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/I6085.php : accessed February 17, 2026), "Johannes Kommer (1938-2001)".
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