The temperature on May 17, 1888 was about 17.3 °C. The air pressure was 25 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 69%. 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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
March 15 » Start of the Anglo-Tibetan War of 1888.
April 6 » Thomas Green Clemson dies, bequeathing his estate to the State of South Carolina to establish Clemson Agricultural College.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
September 8 » In England, the first six Football League matches are played.
October 15 » The "From Hell" letter allegedly sent by Jack the Ripper is received by investigators.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of marriage April 21, 1912
The temperature on April 21, 1912 was between 6.8 °C and 20.2 °C and averaged 14.4 °C. There was 12.8 hours of sunshine (90%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
March 30 » Sultan Abd al-Hafid signs the Treaty of Fez, making Morocco a French protectorate.
April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 18 » First Balkan War: King Peter I of Serbia issues a declaration "To the Serbian People", as his country joins the war.
December 16 » First Balkan War: The Royal Hellenic Navy defeats the Ottoman Navy at the Battle of Elli.
Day of death December 18, 1979
The temperature on December 18, 1979 was between -0.2 °C and 7.3 °C and averaged 5.3 °C. There was 2.0 mm of rain during 4.8 hours. There was 1.4 hours of sunshine (18%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 18 » Richard Petty wins a then-record sixth Daytona 500 after leaders Donnie Allison and Cale Yarborough crash on the final lap of the first NASCAR race televised live flag-to-flag.
March 26 » Anwar al-Sadat, Menachem Begin and Jimmy Carter sign the Egypt–Israel Peace Treaty in Washington, D.C.
April 1 » Nickelodeon was launched in United States.
October 17 » The Department of Education Organization Act creates the US Department of Education.
October 18 » The Federal Communications Commission (FCC) begins allowing people to have home satellite earth stations without a federal government license.
December 16 » Libya joins four other OPEC nations in raising crude oil prices, which has an immediate, dramatic effect on the United States.
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/I167475.php : accessed October 14, 2026), "Willem Jonkman (1888-1979)".
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