The temperature on November 15, 1886 was about 6.8 °C. There was 1 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 95%. 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.
January 29 » Karl Benz patents the first successful gasoline-driven automobile.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
March 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
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 8 » Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.
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.
Day of death September 15, 1969
The temperature on September 15, 1969 was between 13.8 °C and 23.3 °C and averaged 18.3 °C. There was 1.5 hours of sunshine (12%). The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north. Source: KNMI
January 19 » Student Jan Palach dies after setting himself on fire three days earlier in Prague's Wenceslas Square to protest about the invasion of Czechoslovakia by the Soviet Union in 1968. His funeral turns into another major protest.
March 18 » The United States begins secretly bombing the Sihanouk Trail in Cambodia, used by communist forces to infiltrate South Vietnam.
April 3 » Vietnam War: United States Secretary of Defense Melvin Laird announces that the United States will start to "Vietnamize" the war effort.
August 8 » At a zebra crossing in London, photographer Iain Macmillan takes the iconic photo that becomes the cover image of the Beatles' album Abbey Road.
September 1 » Trần Thiện Khiêm becomes Prime Minister of South Vietnam under President Nguyễn Văn Thiệu.
November 17 » Cold War: Negotiators from the Soviet Union and the United States meet in Helsinki, Finland to begin SALT I negotiations aimed at limiting the number of strategic weapons on both sides.
When copying data from this family tree, please include a reference to the origin: Peter Keesman, "Family tree Keesman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-keesman/I23729.php : accessed March 1, 2026), "Pieter Diederich Maandag (1886-1969)".
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