The temperature on April 15, 1878 was about 19.1 °C. The air pressure was 3 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 53%. 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.
March 3 » The Russo-Turkish War ends with Bulgaria regaining its independence from the Ottoman Empire according to the Treaty of San Stefano.
June 15 » Eadweard Muybridge takes a series of photographs to prove that all four feet of a horse leave the ground when it runs; the study becomes the basis of motion pictures.
July 1 » Canada joins the Universal Postal Union.
November 17 » First assassination attempt against Umberto I of Italy by anarchist Giovanni Passannante, who was armed with a dagger. The King survived with a slight wound in an arm. Prime Minister Benedetto Cairoli blocked the aggressor, receiving an injury in a leg.
Day of marriage April 27, 1907
The temperature on April 27, 1907 was between 1.5 °C and 9.3 °C and averaged 4.8 °C. There was 1.1 mm of rain. There was 4.6 hours of sunshine (31%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 6 » Maria Montessori opens her first school and daycare center for working class children in Rome, Italy.
July 7 » Florenz Ziegfeld Jr. staged his first Follies on the roof of the New York Theater in New York City.
August 9 » The first Boy Scout encampment concludes at Brownsea Island in southern England.
September 29 » The cornerstone is laid at the Cathedral Church of Saint Peter and Saint Paul (better known as Washington National Cathedral) in Washington, D.C.
December 14 » The Thomas W. Lawson, the largest ever ship without a heat engine, runs aground and founders near the Hellweather's Reef within the Isles of Scilly in a gale. The pilot and 15 seamen die.
December 16 » The American Great White Fleet begins its circumnavigation of the world.
Day of death April 11, 1955
The temperature on April 11, 1955 was between 4.2 °C and 12.3 °C and averaged 8.7 °C. There was 0.1 mm of rain during 0.2 hours. There was 3.6 hours of sunshine (26%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
April 3 » The American Civil Liberties Union announces it will defend Allen Ginsberg's book Howl against obscenity charges.
May 18 » Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ends.
June 2 » The USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948.
June 16 » In a futile effort to topple Argentine President Juan Perón, rogue aircraft pilots of the Argentine Navy drop several bombs upon an unarmed crowd demonstrating in favor of Perón in Buenos Aires, killing 364 and injuring at least 800. At the same time on the ground, some soldiers attempt to stage a coup but are suppressed by loyal forces.
July 9 » The Russell–Einstein Manifesto calls for a reduction of the risk of nuclear warfare.
October 29 » The Soviet battleshipNovorossiysk strikes a World War II mine in the harbor at Sevastopol.
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/I57783.php : accessed October 12, 2026), "Grietje van Sloten (1878-1955)".
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