The temperature on January 30, 1871 was about -5.5 °C. There was 0.2 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the east-northeast. The atmospheric humidity was 90%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
In The Netherlands , there was from January 4, 1871 to July 6, 1872 the cabinet Thorbecke III, with Mr. J.R. Thorbecke (liberaal) as prime minister.
March 21 » Journalist Henry Morton Stanley begins his trek to find the missionary and explorer David Livingstone.
June 16 » The Universities Tests Act 1871 allows students to enter the universities of Oxford, Cambridge and Durham without religious tests (except for those intending to study theology).
July 20 » British Columbia joins the confederation of Canada.
August 29 » Emperor Meiji orders the abolition of the han system and the establishment of prefectures as local centers of administration. (Traditional Japanese date: July 14, 1871).
October 12 » The British in India enact the Criminal Tribes Act, naming many local communities "Criminal Tribes".
December 24 » The opera Aida premieres in Cairo, Egypt.
Day of death December 1, 1956
The temperature on December 1, 1956 was between -2.4 °C and 4.3 °C and averaged 2.2 °C. There was 0.9 mm of rain during 1.1 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
May 1 » The polio vaccine developed by Jonas Salk is made available to the public.
May 24 » The first Eurovision Song Contest is held in Lugano, Switzerland.
July 30 » A joint resolution of the U.S. Congress is signed by President Dwight D. Eisenhower, authorizing In God We Trust as the U.S. national motto.
September 9 » Elvis Presley appears on The Ed Sullivan Show for the first time.
October 19 » The Soviet Union and Japan sign a Joint Declaration, officially ending the state of war between the two countries that had existed since August 1945.
November 2 » Hungarian Revolution: Imre Nagy requests UN aid for Hungary. Nikita Khrushchev meets with leaders of other Communist countries to seek their advice on the situation in Hungary, selecting János Kádár as the country's next leader on the advice of Josip Broz Tito.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4562.php : accessed February 7, 2026), "Pieter Jacobus Roovers (1871-1956)".
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