The temperature on September 14, 1871 was about 12.6 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northeast. 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 21 » Otto von Bismarck is appointed as the first Chancellor of the German Empire.
May 21 » French troops invade the Paris Commune and engage its residents in street fighting. By the close of "Bloody Week", some 20,000 communards have been killed and 38,000 arrested.
July 20 » British Columbia joins the confederation of Canada.
September 20 » Bishop John Coleridge Patteson, first bishop of Melanesia, is martyred on Nukapu, now in the Solomon Islands.
October 8 » The Great Chicago Fire and the much deadlier Peshtigo Fire break out.
October 12 » The British in India enact the Criminal Tribes Act, naming many local communities "Criminal Tribes".
Day of marriage May 15, 1897
The temperature on May 15, 1897 was about 10.9 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 69%. Source: KNMI
February 4 » The Philippine–American War begins with the Battle of Manila.
February 6 » Spanish–American War: The Treaty of Paris, a peace treaty between the United States and Spain, is ratified by the United States Senate.
March 6 » Bayer registers "Aspirin" as a trademark.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
November 28 » The Second Boer War: a British column is engaged by Boer forces at the Battle of Modder River; although the Boers withdraw, the British suffer heavy casualties.
When copying data from this family tree, please include a reference to the origin: J.H. Wolf, "Family tree Wolf", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-wolf/I246.php : accessed February 3, 2026), "Jacobus Johannes Wolf (1871-1899)".
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