The temperature on May 31, 1880 was about 16.0 °C. The air pressure was 1 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 51%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
February 13 » Thomas Edison observes Thermionic emission.
May 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
June 7 » War of the Pacific: The Battle of Arica, the assault and capture of Morro de Arica (Arica Cape), ends the Campaña del Desierto (Desert Campaign).
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
Day of marriage May 31, 1917
The temperature on May 31, 1917 was between 9.5 °C and 21.1 °C and averaged 15.1 °C. There was 9.9 hours of sunshine (60%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 22 » World War I: President Woodrow Wilson of the still-neutral United States calls for "peace without victory" in Europe.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
June 4 » The first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World.
July 12 » The Bisbee Deportation occurs as vigilantes kidnap and deport nearly 1,300 striking miners and others from Bisbee, Arizona.
July 25 » Sir Robert Borden introduces the first income tax in Canada as a "temporary" measure (lowest bracket is 4% and highest is 25%).
December 9 » World War I: Field Marshal Allenby captures Jerusalem, Palestine.
Day of death March 8, 1955
The temperature on March 8, 1955 was between -3.6 °C and -0.1 °C and averaged -2.0 °C. There was 2.1 mm of rain during 2.3 hours. There was 0.8 hours of sunshine (7%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
April 24 » The Bandung Conference ends: Twenty-nine non-aligned nations of Asia and Africa finish a meeting that condemns colonialism, racism, and the Cold War.
May 14 » Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
June 2 » The USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948.
November 1 » The Vietnam War begins.
December 14 » Albania, Austria, Bulgaria, Cambodia, Ceylon, Finland, Hungary, Ireland, Italy, Jordan, Laos, Libya, Nepal, Portugal, Romania and Spain join the United Nations through United Nations Security Council Resolution 109.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I79907.php : accessed January 14, 2026), "Derk Willem Seinhorst (1880-1955)".
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