The temperature on March 26, 1868 was about 6.4 °C. The air pressure was 11 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 67%. 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).
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
May 30 » Decoration Day (the predecessor of the modern "Memorial Day") is observed in the United States for the first time after a proclamation by John A. Logan, head of the Grand Army of the Republic (a veterans group).
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
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.
December 11 » Paraguayan War: Brazilian troops defeat Paraguayan at the Battle of Avay.
Day of marriage May 4, 1898
The temperature on May 4, 1898 was about 12.5 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 73%. Source: KNMI
February 7 » Dreyfus affair: Émile Zola is brought to trial for libel for publishing J'Accuse…!.
February 15 » The battleship USSMaine explodes and sinks in Havana harbor in Cuba, killing 274. This event leads the United States to declare war on Spain.
April 20 » U.S. President William McKinley signed a joint resolution to Congress for declaration of war against Spain, beginning the Spanish–American War.
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
August 29 » The Goodyear tire company is founded.
September 13 » Hannibal Goodwin patents celluloid photographic film.
Day of death April 7, 1947
The temperature on April 7, 1947 was between 7.3 °C and 12.5 °C and averaged 9.2 °C. There was 1.1 hours of sunshine (8%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-southwest. Source: KNMI
January 3 » Proceedings of the U.S. Congress are televised for the first time.
January 25 » Thomas Goldsmith Jr. files a patent for a "Cathode Ray Tube Amusement Device", the first ever electronic game.
February 21 » In New York City, Edwin Land demonstrates the first "instant camera", the Polaroid Land Camera, to a meeting of the Optical Society of America.
March 17 » First flight of the B-45 Tornado strategic bomber.
August 7 » The Bombay Municipal Corporation formally takes over the Bombay Electric Supply and Transport (BEST).
October 14 » Chuck Yeager becomes the first person to exceed the speed of sound.
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/I103815.php : accessed December 31, 2025), "Roelof Blok (1868-1947)".
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