The temperature on November 10, 1912 was between 6.3 °C and 10.8 °C and averaged 8.2 °C. There was 5.0 mm of rain. There was 1.2 hours of sunshine (13%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
Day of marriage May 3, 1935
The temperature on May 3, 1935 was between 1.5 °C and 17.4 °C and averaged 9.9 °C. There was 8.0 hours of sunshine (53%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
February 2 » Leonarde Keeler administers polygraph tests to two murder suspects, the first time polygraph evidence was admitted in U.S. courts.
March 23 » Signing of the Constitution of the Commonwealth of the Philippines.
April 23 » The Polish Constitution of 1935 is adopted.
June 11 » Inventor Edwin Armstrong gives the first public demonstration of FM broadcasting in the United States at Alpine, New Jersey.
June 18 » Police in Vancouver, British Columbia, Canada, clash with striking longshoremen, resulting in a total of 60 injuries and 24 arrests.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
Day of death June 28, 1969
The temperature on June 28, 1969 was between 7.5 °C and 19.0 °C and averaged 13.9 °C. There was 10.3 hours of sunshine (62%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
April 4 » Dr. Denton Cooley implants the first temporary artificial heart.
April 15 » The EC-121 shootdown incident: North Korea shoots down a United States Navy aircraft over the Sea of Japan, killing all 31 on board.
May 20 » The Battle of Hamburger Hill in Vietnam ends.
July 21 » Apollo program: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon.
August 12 » Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside.
December 17 » Project Blue Book: The United States Air Force closes its study of UFOs.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I13397.php : accessed March 17, 2026), "Hindrik Noordhof (1912-1969)".
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