The temperature on April 26, 1886 was about 8.1 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 83%. 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 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
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.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
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 September 4, 1916
The temperature on September 4, 1916 was between 10.0 °C and 15.0 °C and averaged 12.7 °C. There was 4.2 mm of rain. There was 1.0 hours of sunshine (7%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
February 3 » The Centre Block of the Parliament buildings in Ottawa, Ontario, Canada burns down with the loss of 7 lives.
February 29 » Child labor: In South Carolina, the minimum working age for factory, mill, and mine workers is raised from 12 to 14 years old.
July 15 » In Seattle, Washington, William Boeing and George Conrad Westervelt incorporate Pacific Aero Products (later renamed Boeing).
August 2 » World War I: Austrian sabotage causes the sinking of the Italian battleship Leonardo da Vinci in Taranto.
September 11 » The Quebec Bridge's central span collapses, killing 11 men. The bridge previously collapsed completely on August 29, 1907.
October 16 » Margaret Sanger opens the first family planning clinic in the United States.
Day of death April 18, 1968
The temperature on April 18, 1968 was between 9.7 °C and 23.8 °C and averaged 17.4 °C. There was 9.0 hours of sunshine (64%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I24737.php : accessed February 13, 2026), "Wilhelmina Roovers (1886-1968)".
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