The temperature on March 4, 1930 was between 1.9 °C and 13.8 °C and averaged 7.0 °C. There was 6.0 hours of sunshine (54%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 10 » The Việt Nam Quốc Dân Đảng launches the failed Yên Bái mutiny in hope to overthrow French protectorate over Vietnam.
March 6 » International Unemployment Day demonstrations globally initiated by the Comintern.
April 2 » After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
April 22 » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
October 5 » British airship R101 crashes in France en route to India on its maiden voyage.
Day of death December 6, 1987
The temperature on December 6, 1987 was between -2.4 °C and 1.4 °C and averaged -0.4 °C. There was 0.3 mm of rain during 0.8 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 3 » A crash by Bobby Allison at the Talladega Superspeedway, Alabama fencing at the start-finish line would lead NASCAR to develop the restrictor plate for the following season both at Daytona International Speedway and Talladega.
May 11 » Klaus Barbie goes on trial in Lyon for war crimes committed during World War II.
July 1 » The American radio station WFAN in New York City is launched as the world's first all-sports radio station.
September 13 » Goiânia accident: A radioactive object is stolen from an abandoned hospital in Goiânia, Brazil, contaminating many people in the following weeks and causing some to die from radiation poisoning.
October 19 » Black Monday: The Dow Jones Industrial Average falls by 22%, 508 points.
December 20 » In the worst peacetime sea disaster, the passenger ferry Doña Paz sinks after colliding with the oil tanker 'MT Vector in the Tablas Strait of the Philippines, killing an estimated 4,000 people (1,749 official).
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/I442803.php : accessed February 3, 2026), "Johan Swart (1930-1987)".
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