The temperature on April 14, 1864 was about 13.5 °C. The air pressure was 6 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 19%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
April 25 » American Civil War: The Battle of Marks' Mills.
May 12 » American Civil War: The Battle of Spotsylvania Court House: Union troops assault a Confederate salient known as the "Mule Shoe", with the fiercest fighting of the war, much of it hand-to-hand combat, occurring at "the Bloody Angle" on the northwest.
June 12 » American Civil War, Overland Campaign: Battle of Cold Harbor: Ulysses S. Grant gives the Confederate forces under Robert E. Lee a victory when he pulls his Union troops from their position at Cold Harbor, Virginia and moves south.
June 21 » American Civil War: The Battle of Jerusalem Plank Road begins.
June 29 » At least 99 people, mostly German and Polish immigrants, are killed in Canada's worst railway disaster after a train fails to stop for an open drawbridge and plunges into the Rivière Richelieu near St-Hilaire, Quebec.
December 16 » American Civil War: Battle of Nashville: Major General George Thomas's Union forces defeat Lieutenant General John Bell Hood's Confederate Army of Tennessee.
Day of marriage April 21, 1898
The temperature on April 21, 1898 was about 10.8 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 61%. Source: KNMI
February 27 » King George I of Greece survives an assassination attempt.
March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 29 » The Goodyear tire company is founded.
September 18 » The Fashoda Incident triggers the last war scare between Britain and France.
Day of death June 6, 1943
The temperature on June 6, 1943 was between 10.3 °C and 13.6 °C and averaged 12.0 °C. There was 52.5 mm of rain during 12.2 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
February 20 » The Saturday Evening Post publishes the first of Norman Rockwell's Four Freedoms in support of United States President Franklin Roosevelt's 1941 State of the Union address theme of Four Freedoms.
February 23 » Greek Resistance: The United Panhellenic Organization of Youth is founded in Greece.
March 6 » World War II: The Battle of Fardykambos, one of the first major battles between the Greek Resistance and the occupying Royal Italian Army, ends with the surrender of an entire Italian battalion, the bulk of the garrison of the town of Grevena, leading to its liberation a fortnight later.
July 11 » World War II: Allied invasion of Sicily: German and Italian troops launch a counter-attack on Allied forces in Sicily.
September 30 » The United States Merchant Marine Academy is dedicated by President Roosevelt.
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I18295.php : accessed February 25, 2026), "Joannes de Roover (1864-1943)".
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