The temperature on February 15, 1913 was between -1.2 °C and 6.0 °C and averaged 1.8 °C. There was 6.1 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 20 » Sung Chiao-jen, a founder of the Chinese Nationalist Party, is wounded in an assassination attempt and dies 2 days later.
June 25 » American Civil War veterans begin arriving at the Great Reunion of 1913.
August 13 » First production in the UK of stainless steel by Harry Brearley.
October 14 » Senghenydd colliery disaster, the United Kingdom's worst coal mining accident, claims the lives of 439 miners.
December 1 » The Buenos Aires Metro, the first underground railway system in the Southern Hemisphere and in Latin America, begins operation.
December 21 » Arthur Wynne's "word-cross", the first crossword puzzle, is published in the New York World.
Day of marriage June 17, 1936
The temperature on June 17, 1936 was between 8.9 °C and 26.7 °C and averaged 19.0 °C. There was 14.4 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 29 » The first inductees into the Baseball Hall of Fame are announced.
February 16 » The Popular Front wins the 1936 Spanish general election.
July 20 » The Montreux Convention is signed in Switzerland, authorizing Turkey to fortify the Dardanelles and Bosphorus but guaranteeing free passage to ships of all nations in peacetime.
November 20 » José Antonio Primo de Rivera, founder of the Falange, is killed by a republican execution squad.
December 5 » The Soviet Union adopts a new constitution and the Kirghiz Soviet Socialist Republic is established as a full Union Republic of the USSR.
December 13 » An annular solar eclipse occurred and was visible from Australia, New Zealand on December 14th (Monday), and Oeno Island in Pitcairn Islands on December 13th (Sunday).
Day of death August 18, 1963
The temperature on August 18, 1963 was between 8.3 °C and 19.1 °C and averaged 12.5 °C. There was 6.3 mm of rain during 3.3 hours. There was 5.6 hours of sunshine (38%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
April 16 » Dr. Martin Luther King Jr. pens his Letter from Birmingham Jail while incarcerated in Birmingham, Alabama for protesting against segregation.
June 26 » Cold War: U.S. President John F. Kennedy gave his "Ich bin ein Berliner" speech, underlining the support of the United States for democratic West Germany shortly after Soviet-supported East Germany erected the Berlin Wall.
July 1 » ZIP codes are introduced for United States mail.
July 12 » Pauline Reade, 16, disappears in Gorton, England, the first victim in the Moors murders.
September 4 » Swissair Flight 306 crashes near Dürrenäsch, Switzerland, killing all 80 people on board.
December 7 » Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.
When copying data from this family tree, please include a reference to the origin: Robert de Rooij, "Family tree de Rooij", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_de_rooij/I8331.php : accessed February 4, 2026), "Jan Leeflang (1913-1963)".
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