The temperature on April 9, 1884 was about 9.3 °C. The air pressure was 5 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 58%. 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.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
May 31 » The arrival at Plymouth of Tāwhiao, King of Maoris, to claim the protection of Queen Victoria.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
July 5 » Germany takes possession of Cameroon.
Day of marriage October 26, 1911
The temperature on October 26, 1911 was between 5.0 °C and 10.5 °C and averaged 8.5 °C. There was 4.9 mm of rain. There was 3.0 hours of sunshine (30%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of death July 13, 1971
The temperature on July 13, 1971 was between 7.2 °C and 19.6 °C and averaged 14.5 °C. There was 9.3 hours of sunshine (57%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Guido Davus , "Jannis family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jannis/I704.php : accessed March 1, 2026), "Maria Smolders (1884-1971)".
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