The temperature on September 8, 1911 was between 8.8 °C and 29.5 °C and averaged 18.8 °C. There was 10.4 hours of sunshine (79%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
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.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
Day of death May 30, 2009
The temperature on May 30, 2009 was between 8.3 °C and 22.1 °C and averaged 16.5 °C. There was 15.0 hours of sunshine (92%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Thursday, February 22, 2007 to Thursday, October 14, 2010 the cabinet Balkenende IV, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
January 3 » The first block of the blockchain of the decentralized payment system Bitcoin, called the Genesis block, was established by the creator of the system, Satoshi Nakamoto.
February 12 » Colgan Air Flight 3407 crashes into a house in Clarence Center, New York while on approach to Buffalo Niagara International Airport, killing all on board and one on the ground.
June 1 » Air France Flight 447 crashes into the Atlantic Ocean off the coast of Brazil on a flight from Rio de Janeiro to Paris. All 228 passengers and crew are killed.
June 10 » James Wenneker von Brunn, who was 88-years-old, opened fire inside the United States Holocaust Memorial Museum and fatally shot Museum Special Police Officer Stephen Tyrone Johns. Other security guards returned fire, wounding von Brunn, who was apprehended.
August 10 » Twenty people are killed in Handlová, Trenčín Region, in the deadliest mining disaster in Slovakia's history.
September 29 » The 8.1 Mw Samoa earthquake results in a tsunami that kills 189 and injures hundreds.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P4576.php : accessed February 23, 2026), "Mary Ready Williamson (1911-2009)".
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