The temperature on March 31, 1886 was about 8.3 °C. The air pressure was 64 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 90%. 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.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
May 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
May 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
July 3 » Karl Benz officially unveils the Benz Patent-Motorwagen, the first purpose-built automobile.
November 27 » German judge Emil Hartwich sustains fatal injuries in a duel, which would become the background for Theodor Fontane's Effi Briest.
Day of marriage June 6, 1908
The temperature on June 6, 1908 was between 7.2 °C and 14.5 °C and averaged 10.8 °C. There was 6.4 mm of rain. There was 5.0 hours of sunshine (30%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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.
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
January 13 » The Rhoads Opera House fire in Boyertown, Pennsylvania kills 171 people.
January 28 » Members of the Portuguese Republican Party fail in their attempted coup d'état against the administrative dictatorship of Prime Minister João Franco.
April 14 » Hauser Dam, a steel dam on the Missouri River in Montana, U.S., fails, sending a surge of water 25 to 30 feet (7.6 to 9.1m) high downstream.
June 30 » The Tunguska Event, the largest impact event on Earth in human recorded history, resulting in a massive explosion over Eastern Siberia.
July 1 » SOS is adopted as the international distress signal.
September 27 » Production of the Model T automobile begins at the Ford Piquette Avenue Plant in Detroit.
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/I202305.php : accessed October 23, 2026), "Eike de Groot (1886-1967)".
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