The temperature on May 11, 1886 was about 13.5 °C. The air pressure was 10 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 56%. 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 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
July 4 » The Canadian Pacific Railway's first scheduled train from Montreal arrives in Port Moody on the Pacific coast, after six days of travel.
September 4 » American Indian Wars: After almost 30 years of fighting, Apache leader Geronimo, with his remaining warriors, surrenders to General Nelson Miles in Arizona.
Day of marriage April 23, 1913
The temperature on April 23, 1913 was between 3.5 °C and 17.2 °C and averaged 10.5 °C. There was 11.6 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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 21 » Ioannina is incorporated into the Greek state after the Balkan Wars.
June 23 » Second Balkan War: The Greeks defeat the Bulgarians in the Battle of Doiran.
July 3 » Confederate veterans at the Great Reunion of 1913 reenact Pickett's Charge; upon reaching the high-water mark of the Confederacy they are met by the outstretched hands of friendship from Union survivors.
July 4 » President Woodrow Wilson addresses American Civil War veterans at the Great Reunion of 1913.
August 16 » Completion of the Royal Navy battlecruiser HMSQueen Mary.
November 7 » The first day of the Great Lakes Storm of 1913, a massive blizzard that ultimately killed 250 and caused over $5 million (about $118,098,000 in 2013 dollars) damage. Winds reach hurricane force on this date.
Day of death December 16, 1959
The temperature on December 16, 1959 was between -1.5 °C and 6.2 °C and averaged 2.0 °C. There was 0.2 mm of rain. There was 1.1 hours of sunshine (14%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
June 20 » A rare June hurricane strikes Canada's Gulf of St. Lawrence killing 35.
July 21 » Elijah Jerry "Pumpsie" Green becomes the first African-American to play for the Boston Red Sox, the last team to integrate. He came in as a pinch runner for Vic Wertz and stayed in as shortstop in a 2–1 loss to the Chicago White Sox.
September 25 » Solomon Bandaranaike, Prime Minister of Sri Lanka, is mortally wounded by a Buddhist monk, Talduwe Somarama, and dies the next day.
November 19 » The Ford Motor Company announces the discontinuation of the unpopular Edsel.
November 20 » The Declaration of the Rights of the Child is adopted by the United Nations.
When copying data from this family tree, please include a reference to the origin: A. Koolmees, "Family tree Koolmees", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koolmees/I698.php : accessed January 26, 2026), "Leendert Abraham de Cocq (1886-1959)".
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