The temperature on November 4, 1911 was between 6.9 °C and 12.4 °C and averaged 9.2 °C. There was 1.6 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
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.
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.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
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.
Day of marriage April 2, 1943
The temperature on April 2, 1943 was between 2.9 °C and 10.7 °C and averaged 6.6 °C. There was 0.5 mm of rain during 0.6 hours. There was 2.4 hours of sunshine (18%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 15 » The Pentagon is dedicated in Arlington, Virginia.
January 17 » World War II: Greek submarine Papanikolis captures the 200-ton sailing vessel Agios Stefanos and mans her with part of her crew.
March 5 » First Flight of the Gloster Meteor, Britain's first combat jet aircraft.
June 4 » A military coup in Argentina ousts Ramón Castillo.
July 24 » World War II: Operation Gomorrah begins: British and Canadian aeroplanes bomb Hamburg by night, and American planes bomb the city by day. By the end of the operation in November, 9,000 tons of explosives will have killed more than 30,000 people and destroyed 280,000 buildings.
December 17 » All Chinese are again permitted to become citizens of the United States upon the repeal of the Act of 1882 and the introduction of the Magnuson Act.
Day of death May 23, 2000
The temperature on May 23, 2000 was between 6.8 °C and 18.6 °C and averaged 13.8 °C. There was 4.3 mm of rain during 4.4 hours. There was 1.0 hours of sunshine (6%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 3 » United States v. Microsoft Corp.: Microsoft is ruled to have violated United States antitrust law by keeping "an oppressive thumb" on its competitors.
June 13 » President Kim Dae-jung of South Korea meets Kim Jong-il, leader of North Korea, for the beginning of the first ever inter-Korea summit, in the northern capital of Pyongyang.
July 17 » During approach to Lok Nayak Jayaprakash Airport, Alliance Air Flight 7412 suddenly crashes into a residential neighborhood in Patna, killing 60 people.
July 25 » Concorde Air France Flight 4590 crashes at Paris Charles de Gaulle airport, killing 113 people.
November 15 » Jharkhand officially becomes the 28th state of India, formed from eighteen districts of southern Bihar.
November 25 » The 2000 Baku earthquake, with a Richter magnitude of 7.0, leaves 26 people dead in Baku, Azerbaijan, and becomes the strongest earthquake in the region in 158 years.
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/I8153.php : accessed February 9, 2026), "Jeltje Alberta Gjaltema (1911-2000)".
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