The temperature on April 17, 1887 was about 7.8 °C. The air pressure was 6 kgf/m2 and came mainly from the north-northwest. The airpressure was 78 cm mercury. The atmospheric humidity was 54%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of death July 20, 1960
The temperature on July 20, 1960 was between 12.6 °C and 19.1 °C and averaged 15.3 °C. There was 1.9 mm of rain during 1.3 hours. There was 0.3 hours of sunshine (2%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
May 3 » The Anne Frank House museum opens in Amsterdam, Netherlands.
August 12 » Echo 1A, NASA's first successful communications satellite, is launched.
August 20 » Senegal breaks from the Mali Federation, declaring its independence.
September 5 » Poet Léopold Sédar Senghor is the first elected President of Senegal.
October 12 » Soviet Premier Nikita Khrushchev pounds his shoe on a desk at the United Nations to protest a Philippine assertion.
December 17 » Troops loyal to Emperor Haile Selassie in Ethiopia crush the coup that began December 13, returning power to their leader upon his return from Brazil. Haile Selassie absolves his son of any guilt.
When copying data from this family tree, please include a reference to the origin: Alex Scholte, "Scholte family tree", database, Genealogy Online (https://www.genealogieonline.nl/scholte-stamboom/I500023.php : accessed February 3, 2026), "Jan Springer (1887-1960)".
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