The temperature on May 29, 1915 was between 4.2 °C and 14.4 °C and averaged 9.7 °C. There was 0.9 hours of sunshine (6%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
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.
January 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
February 12 » In Washington, D.C., the first stone of the Lincoln Memorial is put into place.
May 22 » Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
June 9 » William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMSLusitania.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
Day of death January 12, 1970
The temperature on January 12, 1970 was between 1.2 °C and 8.0 °C and averaged 3.9 °C. There was 0.5 mm of rain during 1.1 hours. There was 1.4 hours of sunshine (17%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 22 » The Boeing 747, the world's first "jumbo jet", enters commercial service for launch customer Pan American Airways with its maiden voyage from John F. Kennedy International Airport to London Heathrow Airport.
July 21 » After 11 years of construction, the Aswan High Dam in Egypt is completed.
July 23 » Qaboos bin Said al Said becomes Sultan of Oman after overthrowing his father, Said bin Taimur initiating massive reforms, modernization programs and end to a decade long civil war.
November 4 » Vietnam War: The United States turns over control of the air base at Bình Thủy in the Mekong Delta to South Vietnam.
November 14 » Soviet Union enters ICAO, making Russian the fourth official language of organization.
December 21 » First flight of F-14 multi-role combat aircraft.
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/I220342.php : accessed October 12, 2026), "Pieter Potstra (1915-1970)".
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