The temperature on July 1, 1875 was about 21.4 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 80%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
August 3 » The Firestone Tire and Rubber Company is founded.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
Day of death May 21, 1911
The temperature on May 21, 1911 was between 6.5 °C and 17.7 °C and averaged 11.8 °C. There was 11.1 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
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/I43341.php : accessed October 10, 2026), "Sybrandus Keizer (1875-1911)".
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