The temperature on June 17, 1887 was about 19.7 °C. The air pressure was 28 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 58%. 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 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
October 1 » Balochistan is conquered by the British Empire.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
November 13 » Bloody Sunday clashes in central London.
Day of marriage April 28, 1917
The temperature on April 28, 1917 was between 5.6 °C and 10.3 °C and averaged 8.0 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
May 13 » Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal.
July 31 » World War I: The Battle of Passchendaele begins near Ypres in West Flanders, Belgium.
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
October 24 » First World War: Italy suffers a disastrous defeat on the Austro-Italian front.
November 2 » The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
Day of death December 31, 1961
The temperature on December 31, 1961 was between 0.4 °C and 5.0 °C and averaged 2.8 °C. There was 14.8 mm of rain during 12.6 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
March 2 » John F. Kennedy announces the creation of the Peace Corps in a nationally televised broadcast.
March 29 » The Twenty-third Amendment to the United States Constitution is ratified, allowing residents of Washington, D.C., to vote in presidential elections.
April 11 » The trial of Adolf Eichmann begins in Jerusalem.
April 25 » Robert Noyce is granted a patent for an integrated circuit.
May 25 » Apollo program: U.S. President John F. Kennedy announces, before a special joint session of the U.S. Congress, his goal to initiate a project to put a "man on the Moon" before the end of the decade.
December 15 » Adolf Eichmann is sentenced to death after being found guilty by an Israeli court of 15 criminal charges, including charges of crimes against humanity, crimes against the Jewish people, and membership of an outlawed organization.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I63209.php : accessed March 3, 2026), "Harmina de Graaf (1887-1961)".
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