The temperature on February 21, 1867 was about 7.4 °C. The air pressure was 14 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 94%. Source: KNMI
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 13 » Work begins on the covering of the Senne, burying Brussels's primary river and creating the modern central boulevards.
May 15 » Canadian Bank of Commerce opens for business in Toronto, Ontario. The bank would later merge with Imperial Bank of Canada to become what is CIBC in 1961.
June 19 » Maximilian I of the Second Mexican Empire is executed by a firing squad in Querétaro, Querétaro.
July 17 » Harvard School of Dental Medicine is established in Boston, Massachusetts. It is the first dental school in the U.S. that is affiliated with a university.
October 18 » United States takes possession of Alaska after purchasing it from Russia for $7.2million. Celebrated annually in the state as Alaska Day.
November 3 » Giuseppe Garibaldi and his followers are defeated in the Battle of Mentana and fail to end the Pope's Temporal power in Rome (it would be achieved three years later).
Day of marriage May 20, 1893
The temperature on May 20, 1893 was about 19.9 °C. There was 4 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 66%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
June 5 » The trial of Lizzie Borden for the murder of her father and step-mother begins in New Bedford, Massachusetts.
June 13 » Grover Cleveland notices a rough spot in his mouth and on July 1 undergoes secret, successful surgery to remove a large, cancerous portion of his jaw; the operation was not revealed to the public until 1917, nine years after the president's death.
July 9 » Daniel Hale Williams, American heart surgeon, performs the first successful open-heart surgery in United States without anesthesia.
July 22 » Katharine Lee Bates writes "America the Beautiful" after admiring the view from the top of Pikes Peak near Colorado Springs, Colorado.
August 14 » France becomes the first country to introduce motor vehicle registration.
August 27 » The Sea Islands hurricane strikes the United States near Savannah, Georgia, killing between 1,000–2,000 people.
Day of death November 11, 1960
The temperature on November 11, 1960 was between 6.4 °C and 10.8 °C and averaged 8.3 °C. There was 4.9 hours of sunshine (54%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
May 1 » Cold War: U-2 incident: Francis Gary Powers, in a Lockheed U-2 spyplane, is shot down over the Sverdlovsk Oblast, Soviet Union, sparking a diplomatic crisis.
September 10 » At the Summer Olympics in Rome, Abebe Bikila becomes the first sub-Saharan African to win a gold medal, winning the marathon in bare feet.
September 26 » In Chicago, the first televised debate takes place between presidential candidates Richard M. Nixon and John F. Kennedy.
October 29 » An airplane carrying the Cal Poly football team crashes on takeoff in Toledo, Ohio.
December 11 » French forces crack down in a violent clash with protesters in French Algeria during a visit by French President Charles de Gaulle.
December 17 » Troops loyal to Emperor Haile Selassie in Ethiopia crush the coup that began December 13, returning power to their leader upon his return from Brazil. Haile Selassie absolves his son of any guilt.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I144845.php : accessed October 12, 2026), "Dirkje Postma (1867-1960)".
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