The temperature on October 31, 1868 was about 11.0 °C. The air pressure was 10 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 93%. 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).
February 24 » Andrew Johnson becomes the first President of the United States to be impeached by the United States House of Representatives. He is later acquitted in the Senate.
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
September 23 » Grito de Lares ("Lares Revolt") occurs in Puerto Rico against Spanish rule.
November 2 » Time zone: New Zealand officially adopts a standard time to be observed nationally.
Day of marriage January 31, 1897
The temperature on January 31, 1897 was about -7.0 °C. The airpressure was 74 cm mercury. The atmospheric humidity was 86%. Source: KNMI
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death February 17, 1943
The temperature on February 17, 1943 was between -0.5 °C and 7.4 °C and averaged 2.8 °C. There was 5.5 hours of sunshine (55%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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 15 » World War II: The Soviet counter-offensive at Voronezh begins.
February 7 » World War II: Imperial Japanese Navy forces complete the evacuation of Imperial Japanese Army troops from Guadalcanal during Operation Ke, ending Japanese attempts to retake the island from Allied forces in the Guadalcanal Campaign.
March 19 » Frank Nitti, the Chicago Outfit Boss after Al Capone, commits suicide at the Chicago Central Railyard.
August 17 » World War II: The U.S. Eighth Air Force suffers the loss of 60 bombers on the Schweinfurt–Regensburg mission.
October 31 » World War II: An F4U Corsair accomplishes the first successful radar-guided interception by a United States Navy or Marine Corps aircraft.
December 28 » Soviet authorities launch Operation Ulussy, beginning the deportation of the Kalmyk nation to Siberia and Central Asia.
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/I61784.php : accessed December 26, 2025), "Klaas Hamstra (1868-1943)".
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