The temperature on October 25, 1889 was about 8.2 °C. There was 0.1 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 95%. Source: KNMI
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
June 3 » The first long-distance electric power transmission line in the United States is completed, running 14 miles (23km) between a generator at Willamette Falls and downtown Portland, Oregon.
November 11 » The State of Washington is admitted as the 42nd state of the United States.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage November 9, 1910
The temperature on November 9, 1910 was between 1.4 °C and 8.0 °C and averaged 4.5 °C. There was 1.6 mm of rain. There was 5.4 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 12 » SMSZrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
October 5 » In a revolution in Portugal the monarchy is overthrown and a republic is declared.
October 21 » HMSNiobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy.
Day of death March 7, 1956
The temperature on March 7, 1956 was between -1.9 °C and 5.6 °C and averaged 2.1 °C. There was 4.9 hours of sunshine (44%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
March 23 » Pakistan becomes the first Islamic republic in the world. This date is now celebrated as Republic Day in Pakistan.
May 1 » A doctor in Japan reports an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease.
June 23 » The French National Assembly takes the first step in creating the French Community by passing the Loi Cadre, transferring a number of powers from Paris to elected territorial governments in French West Africa.
July 13 » The Dartmouth workshop is the first conference on artificial intelligence.
September 9 » Elvis Presley appears on The Ed Sullivan Show for the first time.
November 4 » Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I3266.php : accessed February 4, 2026), "Jan Knippenberg (1889-1956)".
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