July 2 » The U.S. Congress passes the Sherman Antitrust Act.
July 3 » Idaho is admitted as the 43rd U.S. state.
September 24 » The Church of Jesus Christ of Latter-day Saints officially renounces polygamy.
November 29 » The Meiji Constitution goes into effect in Japan, and the first Diet convenes.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
December 22 » Cornwallis Valley Railway begins operation between Kentville and Kingsport, Nova Scotia.
Day of marriage October 30, 1920
The temperature on October 30, 1920 was between -2.8 °C and 7.9 °C and averaged 1.5 °C. There was 8.1 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
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.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
March 19 » The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
August 20 » The first commercial radio station, 8MK (now WWJ), begins operations in Detroit.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
Day of death August 20, 1964
The temperature on August 20, 1964 was between 6.9 °C and 17.3 °C and averaged 12.4 °C. There was 1.5 mm of rain during 1.7 hours. There was 5.2 hours of sunshine (36%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
January 12 » Rebels in Zanzibar begin a revolt known as the Zanzibar Revolution and proclaim a republic.
February 27 » The Government of Italy asks for help to keep the Leaning Tower of Pisa from toppling over.
June 12 » Anti-apartheid activist and ANC leader Nelson Mandela is sentenced to life in prison for sabotage in South Africa.
July 6 » Malawi declares its independence from the United Kingdom.
November 3 » Lyndon B. Johnson is elected to a full term as U.S. president, winning 61% of the vote and 44 states, while Washington D.C. residents are able to vote in a presidential election for the first time, casting the majority of their votes for Lyndon Johnson.
December 14 » American Civil Rights Movement: Heart of Atlanta Motel v. United States: The Supreme Court of the United States rules that Congress can use the Constitution's Commerce Clause to fight discrimination.
When copying data from this family tree, please include a reference to the origin: Alfred Groot, "Family tree Groot", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-groot/I274.php : accessed December 29, 2025), "Hendrik Rorije (1890-1964)".
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