The temperature on May 15, 1870 was about 20.6 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 51%. Source: KNMI
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 23 » In Montana, U.S. cavalrymen kill 173 Native Americans, mostly women and children, in what becomes known as the Marias Massacre.
February 15 » Stevens Institute of Technology is founded in New Jersey, USA and offers the first Bachelor of Engineering degree in Mechanical Engineering.
May 12 » The Manitoba Act is given the Royal Assent, paving the way for Manitoba to become a province of Canada on July 15.
August 2 » Tower Subway, the world's first underground tube railway, opens in London, England, United Kingdom.
August 18 » Franco-Prussian War: Battle of Gravelotte is fought.
September 18 » Old Faithful Geyser is observed and named by Henry D. Washburn.
Day of marriage January 13, 1898
The temperature on January 13, 1898 was about 3.2 °C. The airpressure was 78 cm mercury. The atmospheric humidity was 100%. Source: KNMI
April 25 » Spanish–American War: The United States declares war on Spain.
June 27 » The first solo circumnavigation of the globe is completed by Joshua Slocum from Briar Island, Nova Scotia.
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
September 21 » Empress Dowager Cixi seizes power and ends the Hundred Days' Reform in China.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
December 3 » The Duquesne Country and Athletic Club defeated an all-star collection of early football players 16–0, in what is considered to be the very first all-star game for professional American football.
Day of death September 23, 1956
The temperature on September 23, 1956 was between 11.6 °C and 24.0 °C and averaged 17.2 °C. There was 9.1 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
May 1 » The polio vaccine developed by Jonas Salk is made available to the public.
July 13 » The Dartmouth workshop is the first conference on artificial intelligence.
October 8 » The New York Yankees's Don Larsen pitches the only perfect game in a World Series.
October 19 » The Soviet Union and Japan sign a Joint Declaration, officially ending the state of war between the two countries that had existed since August 1945.
November 3 » Hungarian Revolution: A new Hungarian government is formed, in which many members of banned non-Communist parties participate. During negotiations on Tököl Island ostensibly on Soviet troop withdrawal, the KGB arrests Pál Maléter and other Hungarian Revolutionary commanders, effectively decapitating the Revolution's military leadership. János Kádár and Ferenc Münnich form a counter-government in Moscow as Soviet troops ready for the final assault.
November 5 » Suez Crisis: British and French paratroopers land in Egypt after a week-long bombing campaign.
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/I45440.php : accessed February 10, 2026), "Boele Martinus de Haan (1870-1956)".
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