The temperature on February 19, 1930 was between -1.4 °C and 5.8 °C and averaged 1.1 °C. There was 7.1 hours of sunshine (70%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
April 2 » After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
June 21 » One-year conscription comes into force in France.
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
August 16 » The first color sound cartoon, Fiddlesticks, is released by Ub Iwerks.
December 7 » W1XAV in Boston, Massachusetts telecasts video from the CBS radio orchestra program, The Fox Trappers. The telecast also includes the first television commercial in the United States, an advertisement for I.J. Fox Furriers, who sponsored the radio show.
Day of death January 31, 1987
The temperature on January 31, 1987 was between -11.1 °C and 1.5 °C and averaged -5.8 °C. There was 8.1 hours of sunshine (90%). The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. 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.
February 2 » After the 1986 People Power Revolution, the Philippines enacts a new constitution.
February 26 » Iran–Contra affair: The Tower Commission rebukes President Ronald Reagan for not controlling his national security staff.
April 11 » The London Agreement is secretly signed between Israeli Foreign Affairs Minister Shimon Peres and King Hussein of Jordan.
May 17 » Iran–Iraq War: An Iraqi Dassault Mirage F1 fighter jet fires two missiles into the U.S. Navy warship USSStark, killing 37 and injuring 21 of her crew.
July 24 » Hulda Crooks, at 91 years of age, climbed Mt. Fuji. Crooks became the oldest person to climb Japan's highest peak.
October 19 » The United States Navy conducts Operation Nimble Archer, an attack on two Iranian oil platforms in the Persian Gulf.
When copying data from this family tree, please include a reference to the origin: Daniel D, "GJ Tree", database, Genealogy Online (https://www.genealogieonline.nl/gj-tree/R2253.php : accessed January 12, 2026), "Alvin Knopf (1930-1987)".
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