The temperature on April 20, 1880 was about 18.0 °C. The air pressure was 5 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 62%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
May 13 » In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
June 28 » Australian bushranger Ned Kelly is captured at Glenrowan.
June 29 » France annexes Tahiti, renaming the independent Kingdom of Tahiti as "Etablissements de français de l'Océanie".
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of marriage August 7, 1909
The temperature on August 7, 1909 was between 12.2 °C and 24.7 °C and averaged 18.9 °C. There was 11.7 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 9 » Ernest Shackleton, leading the Nimrod Expedition to the South Pole, plants the British flag 97 nautical miles (180km; 112mi) from the South Pole, the farthest anyone had ever reached at that time.
January 16 » Ernest Shackleton's expedition finds the magnetic South Pole.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
August 28 » A group of mid-level Greek Army officers launches the Goudi coup, seeking wide-ranging reforms.
September 30 » The Cunard Line's RMS Mauretania makes a record-breaking westbound crossing of the Atlantic, that will not be bettered for 20 years.
December 4 » The Montreal Canadiens ice hockey club, the oldest surviving professional hockey franchise in the world, is founded as a charter member of the National Hockey Association.
Day of death September 20, 1914
The temperature on September 20, 1914 was between 5.8 °C and 14.7 °C and averaged 9.5 °C. There was 10.0 mm of rain. There was 2.0 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
March 1 » The Republic of China joins the Universal Postal Union.
April 20 » Nineteen men, women, and children die in the Ludlow Massacre during a Colorado coal-miners' strike.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
September 5 » World War I: First Battle of the Marne begins. Northeast of Paris, the French attack and defeat German forces who are advancing on the capital.
September 9 » World War I: The creation of the Canadian Automobile Machine Gun Brigade, the first fully mechanized unit in the British Army.
December 25 » A series of unofficial truces occur across the Western Front to celebrate Christmas.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I56735.php : accessed March 14, 2026), "Jan Slotboom (1880-1914)".
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