The temperature on September 19, 1888 was about 18.0 °C. The air pressure was 10 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 61%. 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.
June 5 » The Rio de la Plata earthquake takes place.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
August 31 » Mary Ann Nichols is murdered. She is the first of Jack the Ripper's confirmed victims.
September 4 » George Eastman registers the trademark Kodak and receives a patent for his camera that uses roll film.
October 30 » The Rudd Concession is granted by Matabeleland to agents of Cecil Rhodes.
Day of death June 30, 1911
The temperature on June 30, 1911 was between 11.3 °C and 15.8 °C and averaged 13.7 °C. There was 6.1 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 3 » A magnitude 7.7 earthquake destroys the city of Almaty in Russian Turkestan.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
October 5 » The Kowloon–Canton Railway commences service.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
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/I77792.php : accessed February 9, 2026), "Tjitske de Boer (1888-1911)".
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