The temperature on January 6, 1878 was about 5.1 °C. There was 0.5 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 95%. 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.
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 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.
October 15 » The Edison Electric Light Company begins operation.
Day of marriage September 30, 1899
The temperature on September 30, 1899 was about 11.7 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 98%. Source: KNMI
February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
February 14 » Voting machines are approved by the U.S. Congress for use in federal elections.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
November 29 » FC Barcelona is founded by Catalan, Spanish and Englishmen. It later develops into one of Spanish football's most iconic and strongest teams.
Day of death July 23, 1938
The temperature on July 23, 1938 was between 10.2 °C and 21.6 °C and averaged 16.4 °C. There was 6.9 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
June 7 » Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces. Five hundred to nine hundred thousand civilians are killed.
October 5 » In Nazi Germany, Jews' passports are invalidated.
October 10 » Abiding by the Munich Agreement, Czechoslovakia completes its withdrawal from the Sudetenland.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I345.php : accessed January 2, 2026), "Jan de Boer (1878-1938)".
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