The temperature on May 6, 1868 was about 12.3 °C. The air pressure was 7 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 49%. 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).
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 27 » Boshin War: The Battle of Toba–Fushimi begins, between forces of the Tokugawa shogunate and pro-Imperial factions; it will end in defeat for the shogunate, and is a pivotal point in the Meiji Restoration.
May 16 » The United States Senate fails to convict President Andrew Johnson by one vote.
May 29 » Mihailo Obrenović III, Prince of Serbia is assassinated.
August 18 » French astronomer Pierre Janssen discovers helium.
October 10 » The Ten Years' War begins against Spanish rule in Cuba.
December 11 » Paraguayan War: Brazilian troops defeat Paraguayan at the Battle of Avay.
Day of marriage March 9, 1899
The temperature on March 9, 1899 was about 7.5 °C. The airpressure was 74 cm mercury. The atmospheric humidity was 85%. Source: KNMI
February 4 » The Philippine–American War begins with the Battle of Manila.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
Day of death April 20, 1927
The temperature on April 20, 1927 was between 5.9 °C and 13.9 °C and averaged 9.9 °C. There was 4.7 hours of sunshine (33%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 9 » A fire at the Laurier Palace movie theatre in Montreal, Quebec, Canada, kills 78 children.
January 11 » Louis B. Mayer, head of film studio Metro-Goldwyn-Mayer (MGM), announces the creation of the Academy of Motion Picture Arts and Sciences, at a banquet in Los Angeles, California.
May 9 » Old Parliament House, Canberra officially opens.
May 22 » Near Xining, China, an 8.3 magnitude earthquake causes 200,000 deaths in one of the world's most destructive earthquakes.
August 27 » Five Canadian women file a petition to the Supreme Court of Canada, asking, "Does the word 'Persons' in Section 24 of the British North America Act, 1867, include female persons?"
November 21 » Columbine Mine massacre: Striking coal miners are allegedly attacked with machine guns by a detachment of state police dressed in civilian clothes.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I6189.php : accessed February 23, 2026), "Johannes Hellendoorn (1868-1927)".
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