The temperature on June 26, 1886 was about 22.3 °C. The air pressure was 10 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 51%. 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 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
May 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 8 » Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
August 31 » The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X (Extreme). Sixty people killed with damage estimated at $5–6 million.
Day of death March 29, 1962
The temperature on March 29, 1962 was between 2.0 °C and 10.6 °C and averaged 6.6 °C. There was 9.9 mm of rain during 5.7 hours. There was -0.1 hours of sunshine (0%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 11 » Cold War: While tied to its pier in Polyarny, the Soviet submarine B-37 is destroyed when fire breaks out in its torpedo compartment.
January 15 » Netherlands New Guinea Conflict: Indonesian Navy fast patrol boat RI Macan Tutul commanded by Commodore Yos Sudarso sunk in Arafura Sea by the Dutch Navy.
March 2 » In Burma, the army led by General Ne Win seizes power in a coup d'état.
July 11 » Project Apollo: At a press conference, NASA announces lunar orbit rendezvous as the means to land astronauts on the Moon, and return them to Earth.
August 16 » Eight years after the remaining French India territories were handed to India, the ratifications of the treaty are exchanged to make the transfer official.
October 27 » By refusing to agree to the firing of a nuclear torpedo at a US warship, Vasily Arkhipov averts nuclear war.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I8814.php : accessed February 12, 2026), "Jelle Hamstra (1886-1962)".
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