The temperature on May 19, 1865 was about 15.0 °C. The air pressure was 7 kgf/m2 and came mainly from the north. The airpressure was 77 cm mercury. The atmospheric humidity was 60%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
March 25 » American Civil War: In Virginia, Confederate forces temporarily capture Fort Stedman from the Union.
April 20 » Astronomer Angelo Secchi demonstrates the Secchi disk, which measures water clarity, aboard Pope Pius IX's yacht, the L'Immaculata Concezion.
June 11 » The Naval Battle of the Riachuelo is fought on the rivulet Riachuelo (Argentina), between the Paraguayan Navy on one side and the Brazilian Navy on the other. The Brazilian victory was crucial for the later success of the Triple Alliance (Brazil, Uruguay, and Argentina) in the Paraguayan War.
June 28 » The Army of the Potomac is disbanded.
July 27 » Welsh settlers arrive at Chubut in Argentina.
December 6 » Georgia ratifies 13th Amendment to the U.S. Constitution.
Day of marriage June 2, 1888
The temperature on June 2, 1888 was about 11.6 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 62%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
March 15 » Start of the Anglo-Tibetan War of 1888.
May 16 » Nikola Tesla delivers a lecture describing the equipment which will allow efficient generation and use of alternating currents to transmit electric power over long distances.
June 5 » The Rio de la Plata earthquake takes place.
June 15 » Crown Prince Wilhelm becomes Kaiser Wilhelm II; he will be the last Emperor of the German Empire. Due to the death of his predecessors Wilhelm I and Frederick III, 1888 is the Year of the Three Emperors.
October 15 » The "From Hell" letter allegedly sent by Jack the Ripper is received by investigators.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of death June 2, 1949
The temperature on June 2, 1949 was between 9.1 °C and 18.0 °C and averaged 13.4 °C. There was 7.6 hours of sunshine (46%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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).
March 25 » More than 92,000 kulaks are suddenly deported from the Baltic states to Siberia.
May 4 » The entire Torino football team (except for two players who did not take the trip: Sauro Tomà, due to an injury and Renato Gandolfi, because of coach request) is killed in a plane crash.
June 8 » George Orwell's Nineteen Eighty-Four is published.
August 10 » An amendment to the National Security Act of 1947 enhances the authority of the United States Secretary of Defense over the Army, Navy and Air Force, and replaces the National Military Establishment with the Department of Defense.
August 22 » The Queen Charlotte earthquake is Canada's strongest since the 1700 Cascadia earthquake.
October 3 » WERD, the first black-owned radio station in the United States, opens in Atlanta.
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/I197186.php : accessed October 20, 2026), "Hendrik Mertens (1865-1949)".
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