The temperature on May 19, 1867 was about 16.3 °C. The air pressure was 1 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 60%. 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 17 » The first ship passes through the Suez Canal.
March 30 » Alaska is purchased from Russia for $7.2 million, about 2-cent/acre ($4.19/km²), by United States Secretary of State William H. Seward.
April 1 » Singapore becomes a British crown colony.
June 8 » Coronation of Franz Joseph as King of Hungary following the Austro-Hungarian compromise (Ausgleich).
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.
September 28 » Toronto becomes the capital of Ontario, having also been the capital of Ontario's predecessors since 1796.
Day of marriage March 21, 1891
The temperature on March 21, 1891 was about 1.9 °C. There was 0.3 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the north-northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 78%. Source: KNMI
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
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.
January 31 » History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
May 16 » The International Electrotechnical Exhibition opens in Frankfurt, Germany, and will feature the world's first long-distance transmission of high-power, three-phase electric current (the most common form today).
May 20 » History of cinema: The first public display of Thomas Edison's prototype kinetoscope.
July 26 » France annexes Tahiti.
August 16 » The Basilica of San Sebastian, Manila, the first all-steel church in Asia, is officially inaugurated and blessed.
October 1 » Stanford University opens its doors in California, United States.
Day of death November 11, 1922
The temperature on November 11, 1922 was between 0.4 °C and 8.8 °C and averaged 5.0 °C. There was 0.1 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 28 » The United Kingdom ends its protectorate over Egypt through a Unilateral Declaration of Independence.
March 10 » Mahatma Gandhi is arrested in India, tried for sedition, and sentenced to six years in prison, only to be released after nearly two years for an appendicitis operation.
April 20 » The Soviet government creates South Ossetian Autonomous Oblast within Georgian SSR.
June 24 » The American Professional Football Association is renamed the National Football League.
December 8 » Northern Ireland ceases to be part of the Irish Free State.
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/I128398.php : accessed December 29, 2025), "Hendrik de Graaf (1867-1922)".
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