The temperature on October 15, 1884 was about 11.1 °C. The air pressure was 2 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 95%. 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.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
July 3 » Dow Jones & Company publishes its first stock average.
July 5 » Germany takes possession of Cameroon.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage April 23, 1909
The temperature on April 23, 1909 was between 7.9 °C and 15.5 °C and averaged 11.5 °C. There was 6.0 mm of rain. There was 8.6 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
May 13 » The first Giro d'Italia starts from Milan. Italian cyclist Luigi Ganna will be the winner.
July 25 » Louis Blériot makes the first flight across the English Channel in a heavier-than-air machine from Calais to Dover, England, United Kingdom in 37 minutes.
August 24 » Workers start pouring concrete for the Panama Canal.
September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
Day of death September 29, 1971
The temperature on September 29, 1971 was between 3.5 °C and 16.9 °C and averaged 9.9 °C. There was -0.1 mm of rain. There was 4.6 hours of sunshine (39%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R977.php : accessed January 21, 2026), "Roelofje Jonker(s) (1884-1971)".
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