The temperature on August 7, 1884 was about 26.3 °C. The air pressure was 6 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 43%. 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.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
August 5 » The cornerstone for the Statue of Liberty is laid on Bedloe's Island (now Liberty Island) in New York Harbor.
October 6 » The Naval War College of the United States is founded in Rhode Island.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
December 10 » Mark Twain's Adventures of Huckleberry Finn is published.
Day of marriage August 18, 1910
The temperature on August 18, 1910 was between 11.8 °C and 21.0 °C and averaged 16.7 °C. There was 8.8 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
May 31 » The South Africa Act comes into force, establishing the Union of South Africa.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
October 1 » A large bomb destroys the Los Angeles Times building, killing 21.
October 11 » Piloted by Arch Hoxsey, Theodore Roosevelt becomes the first U.S. president to fly in an airplane.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I44909.php : accessed February 28, 2026), "Geertruida Plaizier (1884-????)".
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