The temperature on July 10, 1912 was between 8.8 °C and 23.7 °C and averaged 17.8 °C. There was 4.0 hours of sunshine (24%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
May 13 » The Royal Flying Corps, the forerunner of the Royal Air Force, is established in the United Kingdom.
June 4 » Massachusetts becomes the first state of the United States to set a minimum wage.
June 30 » The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
October 14 » Former president Theodore Roosevelt is shot and mildly wounded by John Flammang Schrank. With the fresh wound in his chest, and the bullet still within it, Roosevelt delivers his scheduled speech.
November 12 » King George I of Greece makes a triumphal entry into Thessaloniki after its liberation from 482 years of Ottoman rule.
Day of death October 17, 1980
The temperature on October 17, 1980 was between 10.0 °C and 13.0 °C and averaged 11.3 °C. There was 1.2 mm of rain during 3.9 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
March 4 » Nationalist leader Robert Mugabe wins a sweeping election victory to become Zimbabwe's first black prime minister.
August 1 » A train crash kills 18 people in County Cork, Ireland.
August 14 » Lech Wałęsa leads strikes at the Gdańsk, Poland shipyards.
September 17 » After weeks of strikes at the Lenin Shipyard in Gdańsk, Poland, the nationwide independent trade union Solidarity is established.
November 23 » The 6.9 Mw Irpinia earthquake shakes southern Italy with a maximum Mercalli intensity of X (Extreme), killing 2,483–4,900, and injuring 7,700–8,934.
December 1 » Ecatepec, State of Mexico, Mexico, becomes a city.
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/I176541.php : accessed October 15, 2026), "Roelf Piersma (1912-1980)".
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