The temperature on June 11, 1912 was between 11.1 °C and 20.6 °C and averaged 16.3 °C. There was 10.5 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
April 18 » The Cunard liner RMSCarpathia brings 705 survivors from the RMSTitanic to New York City.
November 28 » Albania declares its independence from the Ottoman Empire.
Day of death August 11, 1980
The temperature on August 11, 1980 was between 13.0 °C and 24.0 °C and averaged 18.0 °C. There was 5.6 mm of rain during 4.9 hours. There was 1.2 hours of sunshine (8%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. 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.
January 25 » Mother Teresa is honored with India's highest civilian award, the Bharat Ratna.
February 22 » Miracle on Ice: In Lake Placid, New York, the United States hockey team defeats the Soviet Union hockey team 4–3.
February 25 » The government of Suriname is overthrown by a military coup led by Dési Bouterse.
May 17 » On the eve of presidential elections, Maoist guerrilla group Shining Path attacks a polling location in Chuschi (a town in Ayacucho), starting the Internal conflict in Peru.
July 1 » "O Canada" officially becomes the national anthem of Canada.
September 11 » A new constitution of Chile is established under the influence of then Chilean dictator Augusto Pinochet, which is subject to controversy in Chile today.
When copying data from this family tree, please include a reference to the origin: C.M.W.Vork-Drenth, "Family tree Drenth", database, Genealogy Online (https://www.genealogieonline.nl/drenth_stamboom/I569.php : accessed January 7, 2026), "Helena Maria Bernardina Wijsbeek (1912-1980)".
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