The temperature on March 15, 1887 was about -2.7 °C. The air pressure was 4 kgf/m2 and came mainly from the south. The airpressure was 76 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.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
October 1 » Balochistan is conquered by the British Empire.
Day of death August 6, 1957
The temperature on August 6, 1957 was between 15.0 °C and 20.4 °C and averaged 17.6 °C. There was 3.1 mm of rain during 1.6 hours. There was 0.1 hours of sunshine (1%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
March 4 » The S&P 500 stock market index is introduced, replacing the S&P 90.
March 6 » Ghana becomes the first Sub-Saharan country to gain independence from the British.
July 1 » The International Geophysical Year begins.
October 4 » Sputnik 1 becomes the first artificial satellite to orbit the Earth.
October 22 » Vietnam War: First United States casualties in Vietnam.
November 14 » The "Apalachin Meeting" in rural Tioga County in upstate New York is raided by law enforcement; many high level Mafia figures are arrested while trying to flee.
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/I3675.php : accessed January 26, 2026), "Emma Knippenburg (1887-1957)".
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