The temperature on April 30, 1886 was about 5.0 °C. The air pressure was 12 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 89%. 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 18 » Modern field hockey is born with the formation of The Hockey Association in England.
March 1 » The Anglo-Chinese School, Singapore is founded by Bishop William Oldham.
June 10 » Mount Tarawera in New Zealand erupts, killing 153 people and burying the famous Pink and White Terraces. Eruptions continue for three months creating a large, 17km long fissure across the mountain peak.
June 26 » Henri Moissan isolated elemental Fluorine for the first time.
August 31 » The 7.0 Mw Charleston earthquake affects southeastern South Carolina with a maximum Mercalli intensity of X (Extreme). Sixty people killed with damage estimated at $5–6 million.
September 4 » American Indian Wars: After almost 30 years of fighting, Apache leader Geronimo, with his remaining warriors, surrenders to General Nelson Miles in Arizona.
Day of marriage July 3, 1912
The temperature on July 3, 1912 was between 6.9 °C and 19.0 °C and averaged 14.5 °C. There was 3.1 hours of sunshine (19%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 4 » The Scout Association is incorporated throughout the British Empire by royal charter.
February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
April 17 » Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
May 4 » Italy occupies the Greek island of Rhodes.
September 28 » Corporal Frank S. Scott of the United States Army becomes the first enlisted man to die in an airplane crash.
Day of death May 4, 1969
The temperature on May 4, 1969 was between 11.7 °C and 20.7 °C and averaged 14.4 °C. There was 18.3 mm of rain during 6.2 hours. There was 2.6 hours of sunshine (17%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 30 » The Beatles' last public performance, on the roof of Apple Records in London. The impromptu concert is broken up by the police.
May 2 » The British ocean liner Queen Elizabeth 2 departs on her maiden voyage to New York City.
May 10 » Vietnam War: The Battle of Dong Ap Bia begins with an assault on Hill 937. It will ultimately become known as Hamburger Hill.
May 16 » Venera program: Venera 5, a Soviet space probe, lands on Venus.
July 20 » A cease fire is announced between Honduras and El Salvador, six days after the beginning of the "Football War".
November 20 » Occupation of Alcatraz: Native American activists seize control of Alcatraz Island until being ousted by the U.S. Government on June 11, 1971.
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The Family tree Wallenburg publication was prepared by W. Wallenburg (contact is not possible).
When copying data from this family tree, please include a reference to the origin: W. Wallenburg, "Family tree Wallenburg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-wallenburg/I482.php : accessed January 22, 2026), "Piet Jan Haverkamp (1886-1969)".
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