January 4 » Utah is admitted as the 45th U.S. state.
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.
July 28 » The city of Miami, Florida is incorporated.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
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 21 » Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia.
March 25 » The Scottsboro Boys are arrested in Alabama and charged with rape.
July 16 » Emperor Haile Selassie signs the first constitution of Ethiopia.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
October 1 » Clara Campoamor persuades the Constituent Cortes to enfranchise women in Spain's new constitution.
December 9 » The Constituent Cortes approves a constitution which establishes the Second Spanish Republic.
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.
May 3 » London's Royal Festival Hall opens with the Festival of Britain.
May 23 » Tibetans sign the Seventeen Point Agreement with China.
July 4 » Cold War: A court in Czechoslovakia sentences American journalist William N. Oatis to ten years in prison on charges of espionage.
September 28 » CBS makes the first color televisions available for sale to the general public, but the product is discontinued less than a month later.
December 20 » The EBR-1 in Arco, Idaho becomes the first nuclear power plant to generate electricity. The electricity powered four light bulbs.
December 25 » A bomb explodes at the home of Harry T. Moore and Harriette V. S. Moore, early leaders of the Civil Rights Movement, killing Harry instantly and fatally wounding Harriette.
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 8, 2026), "Roelf de Groot (1896-1951)".
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