The temperature on May 21, 1878 was about 10.2 °C. There was 18 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 72%. Source: KNMI
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
January 4 » Russo-Turkish War (1877–78): Sofia is liberated from Ottoman rule and designated the capital of Liberated Bulgaria.
January 16 » Russo-Turkish War (1877–78): Battle of Philippopolis: Captain Aleksandr Burago with a squadron of Russian Imperial army dragoons liberates Plovdiv from Ottoman rule.
January 28 » Yale Daily News becomes the first independent daily college newspaper in the United States.
May 14 » The last witchcraft trial held in the United States begins in Salem, Massachusetts, after Lucretia Brown, an adherent of Christian Science, accused Daniel Spofford of attempting to harm her through his mental powers.
June 10 » League of Prizren is established, to oppose the decisions of the Congress of Berlin and the Treaty of San Stefano, as a consequence of which the Albanian lands in the Balkans were being partitioned and given to the neighbor states of Serbia, Montenegro, Bulgaria, and Greece.
July 1 » Canada joins the Universal Postal Union.
Day of marriage May 23, 1903
The temperature on May 23, 1903 was between 9.4 °C and 21.2 °C and averaged 14.5 °C. There was 13.3 hours of sunshine (83%). Source: KNMI
January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 19 » Benito Mussolini, at the time a radical Socialist, is arrested by Bern police for advocating a violent general strike.
July 1 » Start of first Tour de France bicycle race.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
August 18 » German engineer Karl Jatho allegedly flies his self-made, motored gliding airplane four months before the first flight of the Wright brothers.
Day of death June 22, 1933
The temperature on June 22, 1933 was between 9.6 °C and 20.2 °C and averaged 14.2 °C. There was 3.8 mm of rain during 3.9 hours. There was 7.0 hours of sunshine (42%). The average windspeed was 2 Bft (weak wind) and was prevailing from the ??. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
January 5 » Construction of the Golden Gate Bridge begins in San Francisco Bay.
April 5 » U.S. President Franklin D. Roosevelt signs two executive orders: 6101 to establish the Civilian Conservation Corps, and 6102 "forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates" by U.S. citizens.
May 6 » The Deutsche Studentenschaft attacked Magnus Hirschfeld's Institut für Sexualwissenschaft, later burning many of its books.
October 7 » Air France is inaugurated, after being formed by a merger of five French airlines.
October 10 » A United Airlines Boeing 247 is destroyed by sabotage, the first such proven case in the history of commercial aviation.
November 8 » Great Depression: New Deal: US President Franklin D. Roosevelt unveils the Civil Works Administration, an organization designed to create jobs for more than 4 million unemployed.
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/I148327.php : accessed February 15, 2026), "Sierd Heidanus (1878-1933)".
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