The temperature on August 30, 1888 was about 15.2 °C. The air pressure was 4 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 81%. 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.
January 13 » The National Geographic Society is founded in Washington, D.C.
April 3 » The first of eleven unsolved brutal murders of women committed in or near the impoverished Whitechapel district in the East End of London, occurs.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
September 4 » George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
September 8 » In London, the body of Jack the Ripper's second murder victim, Annie Chapman, is found.
September 30 » Jack the Ripper kills his third and fourth victims, Elizabeth Stride and Catherine Eddowes.
Day of marriage April 30, 1914
The temperature on April 30, 1914 was between 6.6 °C and 13.3 °C and averaged 9.3 °C. There was 0.4 mm of rain. There was 1.5 hours of sunshine (10%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. 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.
April 23 » First baseball game at Wrigley Field, then known as Weeghman Park, in Chicago.
July 28 » In the culmination of the July Crisis, Austria-Hungary declares war on Serbia, igniting World War I.
August 4 » In response to the German invasion of Belgium, Belgium and the British Empire declare war on Germany. The United States declares its neutrality.
August 28 » World War I: German troops take the city of Namur in Belgium.
September 17 » World War I: The Race to the Sea begins.
September 18 » The Irish Home Rule Act becomes law, but is delayed until after World War I.
When copying data from this family tree, please include a reference to the origin: Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I65865.php : accessed February 5, 2026), "Jan Willem Keesmaat (1888-????)".
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