The temperature on June 15, 1889 was about 22.1 °C. The air pressure was 4 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
January 22 » Columbia Phonograph is formed in Washington, D.C.
July 8 » The first issue of The Wall Street Journal is published.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage July 12, 1913
The temperature on July 12, 1913 was between 7.2 °C and 22.5 °C and averaged 15.6 °C. There was 11.8 hours of sunshine (72%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
February 5 » Greek military aviators, Michael Moutoussis and Aristeidis Moraitinis perform the first naval air mission in history, with a Farman MF.7 hydroplane.
March 18 » King George I of Greece is assassinated in the recently liberated city of Thessaloniki.
March 21 » Over 360 are killed and 20,000 homes destroyed in the Great Dayton Flood in Dayton, Ohio.
July 31 » The Balkan States sign an armistice in Bucharest.
December 1 » Crete, having obtained self rule from Turkey after the First Balkan War, is annexed by Greece.
December 21 » Arthur Wynne's "word-cross", the first crossword puzzle, is published in the New York World.
Day of death February 6, 1941
The temperature on February 6, 1941 was between -10.5 °C and -4.5 °C and averaged -6.4 °C. There was 3.0 mm of rain during 6.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 23 » Plutonium is first produced and isolated by Dr. Glenn T. Seaborg.
March 7 » Günther Prien and the crew of German submarine U-47, one of the most successful U-boats of World War II, disappear without a trace.
March 29 » World War II: British Royal Navy and Royal Australian Navy forces defeat those of the Italian Regia Marina off the Peloponnesian coast of Greece in the Battle of Cape Matapan.
April 14 » World War II: German general Erwin Rommel attacks Tobruk.
May 12 » Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin.
July 16 » Joe DiMaggio hits safely for the 56th consecutive game, a streak that still stands as an MLB record.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I5156.php : accessed January 31, 2026), "Johannes Keurhorst (1889-1941)".
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