The temperature on October 18, 1887 was about 11.3 °C. The air pressure was 7 kgf/m2 and came mainly from the west-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 77%. 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.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
October 1 » Balochistan is conquered by the British Empire.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of marriage May 23, 1908
The temperature on May 23, 1908 was between 5.9 °C and 15.0 °C and averaged 10.8 °C. There was 3.1 hours of sunshine (19%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
January 30 » Indian pacifist and leader Mohandas Karamchand Gandhi is released from prison by Jan C. Smuts after being tried and sentenced to two months in jail earlier in the month.
March 4 » The Collinwood school fire, Collinwood near Cleveland, Ohio, kills 174 people.
May 26 » The first major commercial oil strike in the Middle East was made at Masjed Soleyman in southwest Persia. The rights to the resource were quickly acquired by the Anglo-Persian Oil Company.
August 8 » Wilbur Wright makes his first flight at a racecourse at Le Mans, France. It is the Wright Brothers' first public flight.
October 6 » The Bosnian crisis erupts when Austria-Hungary formally annexes Bosnia and Herzegovina.
October 14 » The Chicago Cubs defeat the Detroit Tigers, 2–0, clinching the 1908 World Series; this would be their last until winning the 2016 World Series.
Day of death October 4, 1971
The temperature on October 4, 1971 was between 3.4 °C and 16.2 °C and averaged 12.0 °C. There was 0.2 mm of rain during 1.0 hours. There was 5.2 hours of sunshine (45%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
April 1 » Bangladesh Liberation War: The Pakistan Army massacre over 1,000 people in Keraniganj Upazila, Bangladesh.
April 19 » Charles Manson is sentenced to death (later commuted to life imprisonment) for conspiracy in the Tate–LaBianca murders.
August 9 » The Troubles: The British Army in Northern Ireland launches Operation Demetrius. Hundreds of people are arrested and interned, thousands are displaced, and twenty are killed in the violence that followed.
August 21 » A bomb exploded in the Liberal Party campaign rally in Plaza Miranda, Manila, Philippines with several anti-Marcos political candidates injured.
October 1 » The first practical CT scanner is used to diagnose a patient.
October 21 » A gas explosion kills 22 people at a shopping centre near Glasgow, Scotland.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I364984.php : accessed January 12, 2026), "Harmke Ploeger (1887-1971)".
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