The temperature on December 21, 1911 was between 4.6 °C and 8.1 °C and averaged 6.0 °C. There was 2.0 mm of rain. The average windspeed was 4 Bft (moderate breeze) 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.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
September 29 » Italy declares war on the Ottoman Empire.
October 5 » The Kowloon–Canton Railway commences service.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
Day of death September 20, 1993
The temperature on September 20, 1993 was between 9.9 °C and 23.2 °C and averaged 17.1 °C. There was 6.9 hours of sunshine (56%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 26 » World Trade Center bombing: In New York City, a truck bomb parked below the North Tower of the World Trade Center explodes, killing six and injuring over a thousand people.
April 1 » Los Angeles County Metropolitan Transportation Authority is founded in Los Angeles, California, USA.
April 23 » Eritreans vote overwhelmingly for independence from Ethiopia in a United Nations-monitored referendum.
May 24 » Roman Catholic Cardinal Juan Jesús Posadas Ocampo and five other people are assassinated in a shootout at Miguel Hidalgo y Costilla Guadalajara International Airport in Mexico.
June 1 » Dobrinja mortar attack: Thirteen are killed and 133 wounded when Serb mortar shells are fired at a soccer game in Dobrinja, west of Sarajevo.
December 30 » Israel establishes diplomatic relations with Vatican City and also upgrades to full diplomatic relations with Ireland.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I6647.php : accessed February 18, 2026), "Hiltje de Jong (1911-1993)".
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