The temperature on May 20, 1885 was about 10.5 °C. There was 4 mm of rain. The air pressure was 17 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. 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.
January 4 » Sino-French War: French troops under General Oscar de Négrier defeat a numerically superior Qing force at Núi Bop in northern Vietnam.
July 6 » Louis Pasteur successfully tests his vaccine against rabies on Joseph Meister, a boy who was bitten by a rabid dog.
September 2 » Rock Springs massacre: In Rock Springs, Wyoming, 150 white miners, who are struggling to unionize so they could strike for better wages and work conditions, attack their Chinese fellow workers killing 28, wounding 15 and forcing several hundred more out of town.
October 13 » The Georgia Institute of Technology is founded in Atlanta, Georgia.
November 17 » Serbo-Bulgarian War: The decisive Battle of Slivnitsa begins.
November 19 » Serbo-Bulgarian War: Bulgarian victory in the Battle of Slivnitsa solidifies the unification between the Principality of Bulgaria and Eastern Rumelia.
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/I6349.php : accessed October 4, 2026), "Johan van Dellen (1885-1903)".
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