The temperature on January 13, 1911 was between -4.8 °C and 3.9 °C and averaged -0.8 °C. There was 6.7 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 23 » The New York Public Library is dedicated.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
Day of death May 9, 1992
The temperature on May 9, 1992 was between 6.8 °C and 12.1 °C and averaged 8.6 °C. There was 15.2 mm of rain during 9.8 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 12 » Mauritius becomes a republic while remaining a member of the Commonwealth of Nations.
May 13 » Li Hongzhi gives the first public lecture on Falun Gong in Changchun, People's Republic of China.
July 18 » A picture of Les Horribles Cernettes was taken, which became the first ever photo posted to the World Wide Web.
July 23 » Abkhazia declares independence from Georgia.
August 12 » Canada, Mexico and the United States announce completion of negotiations for the North American Free Trade Agreement (NAFTA).
October 27 » United States Navy radioman Allen R. Schindler, Jr. is murdered by shipmate Terry M. Helvey for being gay, precipitating debate about gays in the military that results in the United States' "Don't ask, don't tell" military policy.
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/I118828.php : accessed January 1, 2026), "Albert Willem Spaanstra (1911-1992)".
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