The temperature on April 1, 1887 was about 4.1 °C. There was 9 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the north-northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 97%. 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.
May 9 » Buffalo Bill Cody's Wild West Show opens in London.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 4 » The founder of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, joins Sindh-Madrasa-tul-Islam, Karachi.
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.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
October 1 » Balochistan is conquered by the British Empire.
Day of death March 20, 1968
The temperature on March 20, 1968 was between 4.4 °C and 11.5 °C and averaged 8.0 °C. There was 0.2 mm of rain during 0.4 hours. There was 0.5 hours of sunshine (4%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 17 » As a result of nerve gas testing by the U.S. Army Chemical Corps in Skull Valley, Utah, over 6,000 sheep are found dead.
May 12 » Vietnam War: North Vietnamese and Viet Cong forces attack Australian troops defending Fire Support Base Coral.
June 5 » Presidential candidate Robert F. Kennedy is assassinated by Sirhan Sirhan.
August 21 » James Anderson Jr. posthumously receives the first Medal of Honor to be awarded to an African American U.S. Marine.
November 20 » A total of 78 miners are killed in an explosion at the Consolidated Coal Company's No. 9 mine in Farmington, West Virginia in the Farmington Mine disaster.
November 23 » 1968 Yale vs. Harvard football game: Harvard Crimson rallies to tie Yale Bulldogs 29–29 at Harvard Stadium in Boston, Massachusetts.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I24525.php : accessed February 9, 2026), "Petrus Gyselinck (1887-1968)".
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