The temperature on August 19, 1868 was about 24.5 °C. The air pressure was 3 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 55%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
June 1 » The Treaty of Bosque Redondo is signed, allowing the Navajo to return to their lands in Arizona and New Mexico.
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
July 9 » The 14th Amendment to the United States Constitution is ratified, guaranteeing African Americans full citizenship and all persons in the United States due process of law.
August 18 » French astronomer Pierre Janssen discovers helium.
November 3 » John Willis Menard (R-Louisiana) was the first African American elected to the United States Congress. Because of an electoral challenge, he was never seated.
November 30 » A statue of King Charles XII of Sweden is inaugurated in Stockholm's Kungsträdgården.
Day of marriage May 12, 1892
The temperature on May 12, 1892 was about 12.4 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 54%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
June 30 » The Homestead Strike begins near Pittsburgh, Pennsylvania.
July 7 » The Katipunan is established, the discovery of which by Spanish authorities initiated the Philippine Revolution.
August 9 » Thomas Edison receives a patent for a two-way telegraph.
September 8 » The Pledge of Allegiance is first recited.
September 9 » Amalthea, third moon of Jupiter is discovered by Edward Emerson Barnard.
December 18 » Premiere performance of The Nutcracker by Pyotr Ilyich Tchaikovsky in Saint Petersburg, Russia.
Day of death May 12, 1942
The temperature on May 12, 1942 was between 8.7 °C and 17.7 °C and averaged 12.5 °C. There was 0.3 mm of rain during 0.1 hours. There was 10.3 hours of sunshine (66%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 1 » The Declaration by United Nations is signed by twenty-six nations.
February 20 » Lieutenant Edward O'Hare becomes America's first World War II flying ace.
April 5 » World War II: The Imperial Japanese Navy launches a carrier-based air attack on Colombo, Ceylon during the Indian Ocean raid. Port and civilian facilities are damaged and the Royal Navy cruisers HMSCornwall and HMSDorsetshire are sunk southwest of the island.
May 22 » Mexico enters the Second World War on the side of the Allies.
July 19 » World War II: The Second Happy Time of Hitler's submarines comes to an end, as the increasingly effective American convoy system compels them to return to the central Atlantic.
November 30 » World War II: Battle of Tassafaronga; A smaller squadron of Japanese destroyers led by Raizō Tanaka defeats a U.S. cruiser force under Carleton H. Wright.
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/I48061.php : accessed October 14, 2026), "Klaas Postma (1868-1942)".
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