The temperature on March 22, 1868 was about 12.3 °C. The air pressure was 8 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 69%. 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).
March 8 » Sakai incident: Japanese samurai kill 11 French sailors in the port of Sakai, Osaka.
September 25 » The Imperial Russian steam frigate Alexander Nevsky is shipwrecked off Jutland while carrying Grand Duke Alexei Alexandrovich of Russia.
October 7 » Cornell University holds opening day ceremonies; initial student enrollment is 412, the highest at any American university to that date.
November 30 » A statue of King Charles XII of Sweden is inaugurated in Stockholm's Kungsträdgården.
December 9 » The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
December 11 » Paraguayan War: Brazilian troops defeat Paraguayan at the Battle of Avay.
Day of marriage August 18, 1894
The temperature on August 18, 1894 was about 13.4 °C. There was 17 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 96%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
In The Netherlands , there was from May 9, 1894 to July 27, 1897 the cabinet Roëll, with Jonkheer mr. J. Roëll (oud-liberaal) as prime minister.
April 21 » Norway formally adopts the Krag–Jørgensen bolt-action rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.
May 1 » Coxey's Army, the first significant American protest march, arrives in Washington, D.C.
May 21 » The Manchester Ship Canal in the United Kingdom is officially opened by Queen Victoria, who later knights its designer Sir Edward Leader Williams.
June 23 » The International Olympic Committee is founded at the Sorbonne in Paris, at the initiative of Baron Pierre de Coubertin.
July 4 » The short-lived Republic of Hawaii is proclaimed by Sanford B. Dole.
December 22 » The Dreyfus affair begins in France, when Alfred Dreyfus is wrongly convicted of treason.
Day of death May 2, 1950
The temperature on May 2, 1950 was between 7.5 °C and 15.8 °C and averaged 11.5 °C. There was 1.2 mm of rain during 1.4 hours. There was 7.2 hours of sunshine (48%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
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/I97588.php : accessed October 6, 2026), "Johan Frederik Polman (1868-1950)".
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