The temperature on July 11, 1884 was about 19.5 °C. There was 2 mm of rain. The air pressure was 5 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 70%. 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.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
May 31 » The arrival at Plymouth of Tāwhiao, King of Maoris, to claim the protection of Queen Victoria.
July 3 » Dow Jones & Company publishes its first stock average.
July 5 » Germany takes possession of Cameroon.
August 5 » The cornerstone for the Statue of Liberty is laid on Bedloe's Island (now Liberty Island) in New York Harbor.
Day of marriage November 12, 1903
The temperature on November 12, 1903 was between 5.8 °C and 10.5 °C and averaged 8.4 °C. Source: KNMI
January 4 » Topsy, an elephant, is electrocuted by the owners of Luna Park, Coney Island. The Edison film company records the film Electrocuting an Elephant of Topsy's death.
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
July 23 » The Ford Motor Company sells its first car.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of death September 2, 1959
The temperature on September 2, 1959 was between 9.2 °C and 21.2 °C and averaged 15.5 °C. There was 11.0 hours of sunshine (81%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
February 6 » Jack Kilby of Texas Instruments files the first patent for an integrated circuit.
February 9 » The R-7 Semyorka, the first intercontinental ballistic missile, becomes operational at Plesetsk, USSR.
February 28 » Discoverer 1, an American spy satellite that is the first object intended to achieve a polar orbit, is launched but fails to achieve orbit.
June 5 » The first government of Singapore is sworn in.
June 26 » Swedish boxer Ingemar Johansson becomes world champion of heavy weight boxing, by defeating American Floyd Patterson on technical knockout after two minutes and three seconds in the third round at Yankee Stadium.
October 21 » In New York City, the Solomon R. Guggenheim Museum opens to the public.
When copying data from this family tree, please include a reference to the origin: Ronald van 't Hoff, "Family tree Van 't Hoff - Zondag - Bosch - de Zwaan - vd Kolk - Westhuis - Plomp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-t-hoff/I33741.php : accessed March 6, 2026), "Roelof Wolff (1884-1959)".
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