The temperature on December 11, 1866 was about 5.1 °C. There was 0.1 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 63%. 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.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
February 21 » Lucy Hobbs Taylor becomes the first American woman to graduate from dental school.
April 10 » The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh.
May 1 » The Memphis Race Riots begin. In three days time, 46 blacks and two whites were killed. Reports of the atrocities influenced passage of the Fourteenth Amendment to the United States Constitution.
June 3 » The Fenians are driven out of Fort Erie, Ontario back into the United States.
July 25 » The United States Congress passes legislation authorizing the rank of General of the Army. Lieutenant General Ulysses S. Grant becomes the first to be promoted to this rank.
September 22 » The Battle of Curupayty is Paraguay's only significant victory in the Paraguayan War.
Day of marriage July 21, 1897
The temperature on July 21, 1897 was about 18.5 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. Source: KNMI
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
Day of death February 6, 1927
The temperature on February 6, 1927 was between 0.7 °C and 4.4 °C and averaged 2.8 °C. There was 8.1 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
March 24 » Nanking Incident: Foreign warships bombard Nanjing, China, in defense of the foreign citizens within the city.
May 1 » The Union Labor Life Insurance Company is founded by the American Federation of Labor.
May 26 » The last Ford Model T rolls off the assembly line after a production run of 15,007,003 vehicles.
August 7 » The Peace Bridge opens between Fort Erie, Ontario and Buffalo, New York.
August 23 » Italian anarchists Sacco and Vanzetti are executed after a lengthy, controversial trial.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I53734.php : accessed February 27, 2026), "Petrus van Helvoort (1866-1927)".
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