The temperature on July 31, 1918 was between 8.0 °C and 20.7 °C and averaged 15.1 °C. There was 7.7 hours of sunshine (49%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 12 » Moscow becomes the capital of Russia again after Saint Petersburg held this status for most of the period since 1713.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
August 8 » World War I: The Battle of Amiens begins a string of almost continuous Allied victories with a push through the German front lines (Hundred Days Offensive).
August 27 » Mexican Revolution: Battle of Ambos Nogales: U.S. Army forces skirmish against Mexican Carrancistas in the only battle of World War I fought on American soil.
October 12 » A massive forest fire kills 453 people in Minnesota.
November 21 » A pogrom takes place in Lwów (now Lviv); over three days, at least 50 Jews and 270 Ukrainian Christians are killed by Poles.
Day of marriage April 20, 1953
The temperature on April 20, 1953 was between 1.6 °C and 15.7 °C and averaged 9.4 °C. There was 13.2 hours of sunshine (93%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
April 13 » CIA director Allen Dulles launches the mind-control program Project MKUltra.
April 25 » Francis Crick and James Watson publish "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" describing the double helix structure of DNA.
April 27 » Operation Moolah offers $50,000 to any pilot who defected with a fully mission-capable Mikoyan-Gurevich MiG-15 to South Korea. The first pilot was to receive $100,000.
June 18 » The Egyptian revolution of 1952 ends with the overthrow of the Muhammad Ali dynasty and the declaration of the Republic of Egypt.
July 17 » The largest number of United States midshipman casualties in a single event results from an aircraft crash in Florida, killing 44.
August 12 » The first testing of a real thermonuclear weapon (not test devices): The Soviet atomic bomb project continues with the detonation of "RDS-6s" (Joe 4), the first Soviet thermonuclear bomb.
Day of death July 18, 2015
The temperature on July 18, 2015 was between 14.5 °C and 22.1 °C and averaged 18.2 °C. There was 10.4 hours of sunshine (64%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Monday, November 5, 2012 to Thursday, October 26, 2017 the cabinet Rutte II, with Mark Rutte (VVD) as prime minister.
June 5 » An earthquake with a moment magnitude of 6.0 struck Ranau, Sabah, Malaysia killing 18 people, including hikers and mountain guides on Mount Kinabalu, after mass landslides that occurred during the earthquake. This is the strongest earthquake to strike Malaysia since 1975.
June 30 » A Hercules C-130 military aircraft with 113 people on board crashes in a residential area in Medan, Indonesia, resulting in at least 116 deaths.
July 16 » Four U.S. Marines and one gunman die in a shooting spree targeting military installations in Chattanooga, Tennessee.
July 23 » NASA announces discovery of Kepler-452b by Kepler.
September 14 » The first observation of gravitational waves was made, announced by the LIGO and Virgo collaborations on 11 February 2016.
October 14 » A suicide bomb attack in Pakistan kills at least seven people and injures 13 others.
When copying data from this family tree, please include a reference to the origin: Bob Smith, "Family tree Smith", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smith/I17436.php : accessed March 18, 2026), "Jeltje Wieb Roelevink (1918-2015)".
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