The temperature on May 4, 1889 was about 17.6 °C. The air pressure was 8 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 67%. Source: KNMI
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
March 31 » The Eiffel Tower is officially opened.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
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.
September 23 » Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
Day of marriage May 17, 1913
The temperature on May 17, 1913 was between 7.1 °C and 19.8 °C and averaged 13.5 °C. There was 6.4 hours of sunshine (41%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 12 » The future capital of Australia is officially named Canberra.
March 20 » Sung Chiao-jen, a founder of the Chinese Nationalist Party, is wounded in an assassination attempt and dies 2 days later.
May 30 » The Treaty of London is signed, ending the First Balkan War; Albania becomes an independent nation.
August 16 » Completion of the Royal Navy battlecruiser HMSQueen Mary.
September 23 » Roland Garros of France becomes the first to fly in an airplane across the Mediterranean (from St. Raphael in France to Bizerte, Tunisia).
December 14 » Haruna, the fourth and last Kongō-class ship, launches, eventually becoming one of the Japanese workhorses during World War I and World War II.
Day of death April 11, 1961
The temperature on April 11, 1961 was between 4.3 °C and 15.6 °C and averaged 9.8 °C. There was 0.1 mm of rain. There was 8.9 hours of sunshine (65%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 23 » The Portuguese luxury cruise ship Santa Maria is hijacked by opponents of the Estado Novo regime with the intention of waging war until dictator António de Oliveira Salazar is overthrown.
April 11 » The trial of Adolf Eichmann begins in Jerusalem.
April 23 » Algiers putsch by French generals.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
October 1 » East and West Cameroon merge to form the Federal Republic of Cameroon.
October 1 » The United States Defense Intelligence Agency is formed, becoming the country's first centralized military intelligence organization.
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/I81319.php : accessed October 25, 2026), "Sieger Bergsma (1889-1961)".
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