The temperature on May 10, 1875 was about 16.5 °C. The air pressure was 27 kgf/m2 and came mainly from the west. The airpressure was 76 cm mercury. The atmospheric humidity was 67%. Source: KNMI
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
January 5 » The Palais Garnier, one of the most famous opera houses in the world, is inaugurated in Paris.
March 3 » Georges Bizet's opera Carmen receives its première at the Opéra-Comique in Paris.
April 4 » Vltava, composed by Czech composer Bedřich Smetana and also known by its German name Die Moldau, premiered in Prague.
May 20 » Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
September 3 » The first official game of polo is played in Argentina after being introduced by British ranchers.
October 22 » First telegraphic connection in Argentina.
Day of death November 30, 1894
The temperature on November 30, 1894 was about 5.3 °C. There was 0.1 mm of rain. The airpressure was 77 cm mercury. The atmospheric humidity was 97%. 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.
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/I104494.php : accessed October 22, 2026), "Jan Johannes van der Werff (1875-1894)".
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