The temperature on November 17, 1887 was about -1.3 °C. The air pressure was 17 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of marriage July 2, 1914
The temperature on July 2, 1914 was between 18.1 °C and 27.8 °C and averaged 22.4 °C. There was 11.8 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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 9 » The Phi Beta Sigma fraternity is founded by African-American students at Howard University in Washington D.C., United States.
February 26 » HMHSBritannic, sister to the RMSTitanic, is launched at Harland and Wolff shipyard in Belfast.
September 14 » HMASAE1, the Royal Australian Navy's first submarine, was lost at sea with all hands near East New Britain, Papua New Guinea.
September 16 » World War I: The Siege of Przemyśl (present-day Poland) begins.
October 27 » First World War: The new British battleship HMS Audacious is sunk by a minefield laid by the armed German merchant-cruiser Berlin.
November 7 » The first issue of The New Republic is published.
Day of death May 29, 1964
The temperature on May 29, 1964 was between 11.7 °C and 24.4 °C and averaged 18.4 °C. There was 7.8 hours of sunshine (48%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 13 » In Manchester, New Hampshire, fourteen-year-old Pamela Mason is murdered. Edward Coolidge is tried and convicted of the crime, but the conviction is set aside by the landmark Fourth Amendment case Coolidge v. New Hampshire (1971).
May 9 » Ngô Đình Cẩn, de facto ruler of central Vietnam under his brother President Ngô Đình Diệm before the family's toppling, is executed.
June 19 » The Civil Rights Act of 1964 is approved after surviving an 83-day filibuster in the United States Senate.
July 2 » Civil rights movement: U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1964 meant to prohibit segregation in public places.
September 4 » Scotland's Forth Road Bridge near Edinburgh officially opens.
September 25 » The Mozambican War of Independence against Portugal begins.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I62846.php : accessed February 13, 2026), "Hermanus Ernst Leendert Valkhoff (1887-1964)".
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