January 28 » Walter Arnold of East Peckham, Kent, becomes the first person to be convicted of speeding. He was fined one shilling, plus costs, for speeding at 8mph (13km/h), thereby exceeding the contemporary speed limit of 2mph (3.2km/h).
February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
December 30 » Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila.
Day of marriage November 19, 1931
The temperature on November 19, 1931 was between 2.1 °C and 4.8 °C and averaged 3.7 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. 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.
January 7 » Guy Menzies flies the first solo non-stop trans-Tasman flight (from Australia to New Zealand) in 11 hours and 45 minutes, crash-landing on New Zealand's west coast.
February 3 » The Hawke's Bay earthquake, New Zealand's worst natural disaster, kills 258.
June 23 » Wiley Post and Harold Gatty take off from Roosevelt Field, Long Island in an attempt to circumnavigate the world in a single-engine plane.
July 16 » Emperor Haile Selassie signs the first constitution of Ethiopia.
August 24 » Resignation of the United Kingdom's Second Labour Government. Formation of the UK National Government.
October 1 » The George Washington Bridge in the United States, linking New Jersey and New York, is opened.
Day of death June 13, 1951
The temperature on June 13, 1951 was between 13.2 °C and 18.4 °C and averaged 15.4 °C. There was 0.1 mm of rain during 0.1 hours. There was 4.0 hours of sunshine (24%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
In The Netherlands , there was from March 15, 1951 to September 2, 1952 the cabinet Drees I, with Dr. W. Drees (PvdA) as prime minister.
March 6 » Cold War: The trial of Ethel and Julius Rosenberg begins.
March 28 » First Indochina War: In the Battle of Mạo Khê, French Union forces, led by World War II hero Jean de Lattre de Tassigny, inflict a defeat on Việt Minh forces commanded by General Võ Nguyên Giáp.
April 25 » Korean War: Assaulting Chinese forces are forced to withdraw after heavy fighting with UN forces, primarily made up of Australian and Canadian troops, at the Battle of Kapyong.
October 16 » The first Prime Minister of Pakistan, Liaquat Ali Khan, is assassinated in Rawalpindi.
October 20 » The "Johnny Bright incident" occurs in Stillwater, Oklahoma.
November 15 » Greek resistance leader Nikos Beloyannis, along with 11 resistance members, is sentenced to death by the court-martial.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I77559.php : accessed October 5, 2026), "Roelf de Groot (1896-1951)".
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