January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage April 17, 1912
The temperature on April 17, 1912 was between 1.7 °C and 15.3 °C and averaged 9.6 °C. There was 11.8 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
September 2 » Arthur Rose Eldred is awarded the first Eagle Scout award of the Boy Scouts of America.
October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
November 12 » The frozen bodies of Robert Scott and his men are found on the Ross Ice Shelf in Antarctica.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
Day of death August 25, 1960
The temperature on August 25, 1960 was between 15.6 °C and 21.8 °C and averaged 18.2 °C. There was 3.5 mm of rain during 2.3 hours. There was 2.1 hours of sunshine (15%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Ton Dicker, "Dicker family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dicker/I709.php : accessed January 2, 2026), "Tonia de Groot (1889-1960)".
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