The temperature on July 1, 1887 was about 19.7 °C. The air pressure was 16 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 66%. 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.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
Day of death August 30, 1964
The temperature on August 30, 1964 was between 5.7 °C and 17.6 °C and averaged 11.9 °C. There was 0.4 mm of rain during 0.5 hours. There was 6.6 hours of sunshine (48%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
March 6 » Nation of Islam leader Elijah Muhammad officially gives boxing champion Cassius Clay the name Muhammad Ali.
March 14 » Jack Ruby is convicted of killing Lee Harvey Oswald, the assumed assassin of John F. Kennedy.
July 27 » Vietnam War: Five thousand more American military advisers are sent to South Vietnam bringing the total number of United States forces in Vietnam to 21,000.
October 12 » The Soviet Union launches the Voskhod 1 into Earth orbit as the first spacecraft with a multi-person crew, and the first flight without pressure suits.
December 14 » American Civil Rights Movement: Heart of Atlanta Motel v. United States: The Supreme Court of the United States rules that Congress can use the Constitution's Commerce Clause to fight discrimination.
December 24 » Flying Tiger Line Flight 282 crashes after takeoff from San Francisco International Airport, killing three.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I13047.php : accessed January 22, 2026), "Zacharias Christiaan Grobler (1887-1964)".
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