The temperature on June 30, 1884 was about 17.7 °C. The air pressure was 2 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 64%. 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.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
July 5 » Germany takes possession of Cameroon.
October 6 » The Naval War College of the United States is founded in Rhode Island.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage July 12, 1906
The temperature on July 12, 1906 was between 9.9 °C and 15.1 °C and averaged 12.4 °C. There was 4.8 mm of rain. There was 0.5 hours of sunshine (3%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
February 11 » Pope Pius X publishes the encyclical Vehementer Nos.
April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
May 2 » Closing ceremony of the Intercalated Games in Athens, Greece.
June 26 » The first Grand Prix motor race is held at Le Mans.
June 30 » The United States Congress passes the Meat Inspection Act and Pure Food and Drug Act.
September 5 » The first legal forward pass in American football is thrown by Bradbury Robinson of St. Louis University to teammate Jack Schneider in a 22–0 victory over Carroll College (Wisconsin).
Day of death February 28, 1962
The temperature on February 28, 1962 was between -2.0 °C and 0.9 °C and averaged -0.4 °C. There was 0.4 hours of sunshine (4%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
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/I212950.php : accessed October 24, 2026), "Klaas Holtrop (1884-1962)".
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