The temperature on November 29, 1870 was about 7.5 °C. The air pressure was 2 kgf/m2 and came mainly from the east. The airpressure was 77 cm mercury. The atmospheric humidity was 80%. 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 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
September 8 » Galveston hurricane: A powerful hurricane hits Galveston, Texas killing about 8,000 people.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
Day of death August 11, 1941
The temperature on August 11, 1941 was between 13.1 °C and 18.1 °C and averaged 16.0 °C. There was 17.3 mm of rain during 8.0 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
July 13 » World War II: Montenegrins begin a popular uprising against the Axis powers (Trinaestojulski ustanak).
September 17 » World War II: A decree of the Soviet State Committee of Defense restores compulsory military training.
November 14 » World War II: The aircraft carrier HMSArk Royal sinks due to torpedo damage from the German submarineU-81 sustained on November 13.
December 7 » World War II: Attack on Pearl Harbor: The Imperial Japanese Navy carries out a surprise attack on the United States Pacific Fleet and its defending Army and Marine air forces at Pearl Harbor, Hawaii. (For Japan's near-simultaneous attacks on Eastern Hemisphere targets, see December 8.)
December 11 » World War II: Germany and Italy declare war on the United States, following the Americans' declaration of war on the Empire of Japan in the wake of the attack on Pearl Harbor. The United States, in turn, declares war on them.
December 14 » World War II: Japan signs a treaty of alliance with Thailand.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I272.php : accessed January 9, 2026), "Michail Johannes Kennekens (1870-1941)".
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