January 31 » Czechoslav Trade Union Association is founded in Prague.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of death July 20, 1971
The temperature on July 20, 1971 was between 7.5 °C and 20.6 °C and averaged 14.9 °C. There was 3.2 mm of rain during 0.8 hours. There was 7.9 hours of sunshine (49%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 8 » South Vietnamese ground troops launch an incursion into Laos to try to cut off the Ho Chi Minh trail and stop communist infiltration.
March 1 » President of Pakistan Yahya Khan indefinitely postpones the pending national assembly session, precipitating massive civil disobedience in East Pakistan.
April 17 » The Provisional Government of Bangladesh is formed.
September 9 » The four-day Attica Prison riot begins, eventually resulting in 39 dead, most killed by state troopers retaking the prison.
September 11 » The Egyptian Constitution becomes official.
September 20 » Having weakened after making landfall in Nicaragua the previous day, Hurricane Irene regains enough strength to be renamed Hurricane Olivia, making it the first known hurricane to cross from the Atlantic Ocean into the Pacific.
When copying data from this family tree, please include a reference to the origin: Alle Elbers, "Sluzigers (e.a.)", database, Genealogy Online (https://www.genealogieonline.nl/sluzigers/I134554.php : accessed February 18, 2026), "Meindert Vinke (1897-1971)".
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