The temperature on December 20, 1908 was between -1.6 °C and 3.9 °C and averaged 1.2 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
January 15 » The Alpha Kappa Alpha sorority becomes the first Greek-letter organization founded and established by African American college women.
June 27 » A group of Vietnamese tirailleurs conducts a failed attempt to poison the entire French army's garrison in the Hanoi Citadel with the aim to make way for Hoàng Hoa Thám's rebel army to capture Hanoi.
June 30 » The Tunguska Event, the largest impact event on Earth in human recorded history, resulting in a massive explosion over Eastern Siberia.
July 1 » SOS is adopted as the international distress signal.
July 23 » The Second Constitution accepted by the Ottomans.
October 1 » Ford Model T automobiles are offered for sale at a price of US$825.
Day of death November 10, 1970
The temperature on November 10, 1970 was between 3.4 °C and 10.9 °C and averaged 6.9 °C. There was 0.2 mm of rain during 0.3 hours. There was 2.7 hours of sunshine (30%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
February 11 » Japan launches Ohsumi, becoming the fourth nation to put an object into orbit using its own booster.
March 21 » The first Earth Day proclamation is issued by Joseph Alioto, Mayor of San Francisco.
March 28 » An earthquake strikes western Turkey at about 23:05 local time, killing 1,086 and injuring 1,260.
September 19 » Kostas Georgakis, a Greek student of geology, sets himself ablaze in Matteotti Square in Genoa, Italy, as a protest against the dictatorial regime of Georgios Papadopoulos.
October 9 » The Khmer Republic is proclaimed in Cambodia.
November 4 » Salvador Allende takes office as President of Chile, the first Marxist to become president of a Latin American country through open elections.
Day of burial November 13, 1970
The temperature on November 13, 1970 was between 3.4 °C and 9.0 °C and averaged 5.7 °C. There was 2.0 mm of rain during 0.6 hours. There was 7.1 hours of sunshine (79%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 15 » Muammar Gaddafi is proclaimed premier of Libya.
January 15 » Nigerian Civil War: Biafran rebels surrender following an unsuccessful 32-month fight for independence from Nigeria.
March 26 » South Vietnamese President Nguyễn Văn Thiệu implements a land reform program to solve the problem of land tenancy.
April 8 » Bahr El-Baqar primary school bombing: Israeli bombers strike an Egyptian school. Forty-six children are killed.
April 22 » The first Earth Day is celebrated.
September 6 » Two passenger jets bound from Europe to New York are simultaneously hijacked by Palestinian terrorist members of the PFLP and taken to Dawson's Field, Jordan.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I34862.php : accessed January 14, 2026), "Jacobus Klaas "Jac" Ypma (1908-1970)".
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