The temperature on May 21, 1888 was about 18.1 °C. The air pressure was 10 kgf/m2 and came mainly from the north. The airpressure was 77 cm mercury. The atmospheric humidity was 47%. 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 20 » The premiere of the very first Romani language operetta is staged in Moscow, Russia.
March 23 » In England, The Football League, the world's oldest professional association football league, meets for the first time.
May 12 » In Southeast Asia, the North Borneo Chartered Company's territories become the British protectorate of North Borneo.
June 29 » George Edward Gouraud records Handel's Israel in Egypt onto a phonograph cylinder, thought for many years to be the oldest known recording of music.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of marriage June 6, 1914
The temperature on June 6, 1914 was between 3.6 °C and 15.7 °C and averaged 10.1 °C. There was 0.3 mm of rain. There was 4.7 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
August 15 » World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
August 21 » World War I: The Battle of Charleroi, a successful German attack across the River Sambre that pre-empted a French offensive in the same area.
September 11 » World War I: Australia invades German New Guinea, defeating a German contingent at the Battle of Bita Paka.
September 18 » The Irish Home Rule Act becomes law, but is delayed until after World War I.
October 5 » World War I: An aircraft successfully destroys another aircraft with gunfire.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I7492.php : accessed February 17, 2026), "Flora C. Knippenberg (1888-1975)".
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