The temperature on March 10, 1884 was about 3.8 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 88%. 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.
February 1 » The first volume (A to Ant) of the Oxford English Dictionary is published.
March 13 » The Siege of Khartoum begins. It lasts until January 26, 1885.
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.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of death September 29, 1961
The temperature on September 29, 1961 was between 13.9 °C and 18.7 °C and averaged 16.1 °C. There was 15.1 mm of rain during 3.1 hours. There was 0.3 hours of sunshine (3%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 24 » Goldsboro B-52 crash: A bomber carrying two H-bombs breaks up in mid-air over North Carolina. The uranium core of one weapon remains lost.
February 14 » Discovery of the chemical elements: Element 103, Lawrencium, is first synthesized at the University of California.
March 15 » At the 1961 Commonwealth Prime Ministers' Conference, South Africa announces that it will withdraw from the Commonwealth when the South African Constitution of 1961 comes into effect.
April 23 » Algiers putsch by French generals.
May 19 » Venera program: Venera 1 becomes the first man-made object to fly by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back any data).
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
When copying data from this family tree, please include a reference to the origin: David Dirk Pilon, "Family tree Pilon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-pilon/I1405.php : accessed February 24, 2026), "Hiddo Pilon (1884-1961)".
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