The temperature on May 18, 1886 was about 14.7 °C. The air pressure was 10 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. 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 18 » Modern field hockey is born with the formation of The Hockey Association in England.
February 23 » Charles Martin Hall produced the first samples of aluminium from the electrolysis of aluminium oxide, after several years of intensive work. He was assisted in this project by his older sister, Julia Brainerd Hall.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
March 27 » Geronimo, Apache warrior, surrenders to the U.S. Army, ending the main phase of the Apache Wars.
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.
October 28 » President Cleveland dedicates the Statue of Liberty.
Day of marriage July 9, 1913
The temperature on July 9, 1913 was between 7.6 °C and 18.3 °C and averaged 13.3 °C. There was 4.5 mm of rain. There was 5.5 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
March 31 » The Vienna Concert Society rioted during a performance of modernist music by Arnold Schoenberg, Alban Berg, Alexander von Zemlinsky, and Anton von Webern, causing a premature end to the concert due to violence; this concert became known as the Skandalkonzert.
April 24 » The Woolworth Building, a skyscraper in New York City, is opened.
June 24 » Greece and Serbia annul their alliance with Bulgaria.
June 25 » American Civil War veterans begin arriving at the Great Reunion of 1913.
December 1 » Ford Motor Company introduces the first moving assembly line.
December 14 » Haruna, the fourth and last Kongō-class ship, launches, eventually becoming one of the Japanese workhorses during World War I and World War II.
Day of death April 24, 1943
The temperature on April 24, 1943 was between 6.4 °C and 12.6 °C and averaged 10.3 °C. There was 1.9 mm of rain during 0.9 hours. There was 5.0 hours of sunshine (35%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 15 » World War II: The Soviet counter-offensive at Voronezh begins.
July 4 » World War II: The Battle of Kursk, the largest full-scale battle in history and the world's largest tank battle, begins in the village of Prokhorovka.
August 2 » World War II: The Motor Torpedo Boat PT-109 is rammed by the Japanese destroyer Amagiri and sinks. Lt. John F. Kennedy, future U.S. president, saves all but two of his crew.
August 17 » World War II: The Royal Air Force begins Operation Hydra, the first air raid of the Operation Crossbow strategic bombing campaign against Germany's V-weapon program.
October 19 » Streptomycin, the first antibiotic remedy for tuberculosis, is isolated by researchers at Rutgers University.
November 29 » World War II: The second session of the Anti-Fascist Council for the National Liberation of Yugoslavia (AVNOJ), held to determine the post-war ordering of the country, concludes in Jajce (present-day Bosnia and Herzegovina).
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I7252.php : accessed October 2, 2026), "PIETER RIEGMAN (1886-1943)".
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