The temperature on June 13, 1888 was about 19.3 °C. The air pressure was 22 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 66%. 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.
March 15 » Start of the Anglo-Tibetan War of 1888.
June 5 » The Rio de la Plata earthquake takes place.
August 14 » An audio recording of English composer Arthur Sullivan's "The Lost Chord", one of the first recordings of music ever made, is played during a press conference introducing Thomas Edison's phonograph in London, England.
September 4 » George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
September 8 » In England, the first six Football League matches are played.
September 22 » The first issue of National Geographic Magazine is published.
Day of marriage June 21, 1913
The temperature on June 21, 1913 was between 10.4 °C and 14.4 °C and averaged 12.2 °C. There was 9.0 mm of rain. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
March 4 » The United States Department of Labor is formed.
April 24 » The Woolworth Building, a skyscraper in New York City, is opened.
June 4 » Emily Davison, a suffragette, runs out in front of King George V's horse at The Derby. She is trampled, never regains consciousness, and dies four days later.
June 24 » Greece and Serbia annul their alliance with Bulgaria.
July 3 » Confederate veterans at the Great Reunion of 1913 reenact Pickett's Charge; upon reaching the high-water mark of the Confederacy they are met by the outstretched hands of friendship from Union survivors.
July 4 » President Woodrow Wilson addresses American Civil War veterans at the Great Reunion of 1913.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I12397.php : accessed March 4, 2026), "Klaas Koopman (1888-????)".
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