The temperature on January 10, 1889 was about 3.2 °C. There was 1 mm of rain. The air pressure was 12 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 91%. Source: KNMI
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
Day of marriage October 7, 1915
The temperature on October 7, 1915 was between 4.8 °C and 14.6 °C and averaged 10.0 °C. There was 0.4 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 28 » An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces.
April 25 » World War I: The Battle of Gallipoli begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at Anzac Cove and Cape Helles.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 22 » Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death November 22, 1960
The temperature on November 22, 1960 was between 7.8 °C and 11.5 °C and averaged 9.6 °C. There was 0.5 mm of rain during 2.1 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 25 » The National Association of Broadcasters reacts to the "payola" scandal by threatening fines for any disc jockeys who accept money for playing particular records.
February 13 » With the success of a nuclear test codenamed "Gerboise Bleue", France becomes the fourth country to possess nuclear weapons.
March 17 » U.S. President Dwight D. Eisenhower signs the National Security Council directive on the anti-Cuban covert action program that will ultimately lead to the Bay of Pigs Invasion.
April 8 » The Netherlands and West Germany sign an agreement to negotiate the return of German land annexed by the Dutch in return for 280million German marks as Wiedergutmachung.
May 9 » The Food and Drug Administration announces it will approve birth control as an additional indication for Searle's Enovid, making Enovid the world's first approved oral contraceptive pill.
May 16 » Theodore Maiman operates the first optical laser (a ruby laser), at Hughes Research Laboratories in Malibu, California.
When copying data from this family tree, please include a reference to the origin: Age Leenstra, "Family tree Leenstra Postma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-leenstra-postma/I1007.php : accessed March 6, 2026), "Maria Petronella van der Kamp (1889-1960)".
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