April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
April 20 » Pierre and Marie Curie refine radium chloride.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
Day of marriage February 28, 1930
The temperature on February 28, 1930 was between -0.9 °C and 6.9 °C and averaged 1.8 °C. There was 8.9 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 6 » The first diesel-powered automobile trip is completed, from Indianapolis, Indiana, to New York, New York.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
April 18 » The British Broadcasting Corporation announced that "there is no news" in their evening report.
September 6 » Democratically elected Argentine president Hipólito Yrigoyen is deposed in a military coup.
December 2 » Great Depression: In a State of the Union message, U.S. President Herbert Hoover proposes a $150 million (equivalent to $2,296,000,000 in 2019) public works program to help generate jobs and stimulate the economy.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
Day of death October 17, 1981
The temperature on October 17, 1981 was between 2.3 °C and 9.7 °C and averaged 6.3 °C. There was 7.9 mm of rain during 8.7 hours. There was 2.5 hours of sunshine (24%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
May 21 » The Italian government releases the membership list of Propaganda Due, an illegal pseudo-Masonic lodge that was implicated in numerous Italian crimes and mysteries.
May 24 » Ecuadorian president Jaime Roldós Aguilera, his wife, and his presidential committee die in an aircraft accident while travelling from Quito to Zapotillo minutes after the president gave a famous speech regarding the 24 de mayo anniversary of the Battle of Pichincha.
July 17 » A structural failure leads to the collapse of a walkway at the Hyatt Regency in Kansas City, Missouri, killing 114 people and injuring more than 200.
September 3 » The Convention on the Elimination of All Forms of Discrimination Against Women, an international bill of rights for women, is instituted by the United Nations.
September 25 » Belize joins the United Nations.
December 4 » South Africa grants independence to the Ciskei "homeland" (not recognized by any government outside South Africa).
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/I208307.php : accessed October 17, 2026), "Anna van der Laan (1902-1981)".
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