The temperature on April 10, 1885 was about 6.3 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. 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.
April 3 » Gottlieb Daimler is granted a German patent for his engine design.
May 1 » The original Chicago Board of Trade Building opens for business.
June 9 » Treaty of Tientsin is signed to end the Sino-French War, with China eventually giving up Tonkin and Annam – most of present-day Vietnam – to France.
August 29 » Gottlieb Daimler patents the world's first internal combustion motorcycle, the Reitwagen.
September 22 » Lord Randolph Churchill makes a speech in Ulster in opposition to the Irish Home Rule movement.
Day of death June 19, 1917
The temperature on June 19, 1917 was between 15.7 °C and 25.7 °C and averaged 19.4 °C. There was 1.1 mm of rain. There was 6.2 hours of sunshine (37%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
When copying data from this family tree, please include a reference to the origin: M. Jacobs, "Ancestors Birgit Willaert", database, Genealogy Online (https://www.genealogieonline.nl/kwartierstaat-birgit-willaert/I10942.php : accessed August 8, 2025), "Roelf van der Ploeg (1850-1917)".
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