The temperature on May 15, 1871 was about 5.6 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northwest. The atmospheric humidity was 88%. 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).
In The Netherlands , there was from January 4, 1871 to July 6, 1872 the cabinet Thorbecke III, with Mr. J.R. Thorbecke (liberaal) as prime minister.
March 18 » Declaration of the Paris Commune; President of the French Republic, Adolphe Thiers, orders the evacuation of Paris.
March 21 » Journalist Henry Morton Stanley begins his trek to find the missionary and explorer David Livingstone.
May 28 » The Paris Commune falls after two months.
July 29 » The Connecticut Valley Railroad opens between Old Saybrook, Connecticut and Hartford, Connecticut in the United States.
August 29 » Emperor Meiji orders the abolition of the han system and the establishment of prefectures as local centers of administration. (Traditional Japanese date: July 14, 1871).
December 24 » The opera Aida premieres in Cairo, Egypt.
Day of death July 25, 1875
The temperature on July 25, 1875 was about 20.6 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 59%. 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).
March 3 » Georges Bizet's opera Carmen receives its première at the Opéra-Comique in Paris.
May 1 » Alexandra Palace reopens after being burned down in a fire in 1873.
May 20 » Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
August 25 » Captain Matthew Webb becomes the first person to swim across the English Channel, traveling from Dover, England, to Calais, France, in 21 hours and 45 minutes.
September 3 » The first official game of polo is played in Argentina after being introduced by British ranchers.
December 4 » Notorious New York City politician Boss Tweed escapes from prison; he is later recaptured in Spain.
When copying data from this family tree, please include a reference to the origin: Alfred Groot, "Family tree Groot", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-groot/I1942.php : accessed February 22, 2026), "Jan Pomper (1871-1875)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.