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 29 » American Civil War: Federal forces under Major General Philip Sheridan move to flank Confederate forces under Robert E. Lee as the Appomattox Campaign begins.
April 3 » American Civil War: Union forces capture Richmond, Virginia, the capital of the Confederate States of America.
April 13 » American Civil War: Raleigh, North Carolina is occupied by Union Forces.
May 5 » American Civil War: The Confederate government was declared dissolved at Washington, Georgia.
June 19 » Over two years after the Emancipation Proclamation, slaves in Galveston, Texas, United States, are finally informed of their freedom. The anniversary is still officially celebrated in Texas and 41 other contiguous states as Juneteenth.
June 23 » American Civil War: At Fort Towson in the Oklahoma Territory, Confederate Brigadier General Stand Watie surrenders the last significant Confederate army.
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.
January 13 » The National Geographic Society is founded in Washington, D.C.
March 15 » Start of the Anglo-Tibetan War of 1888.
March 20 » The premiere of the very first Romani language operetta is staged in Moscow, Russia.
August 31 » Mary Ann Nichols is murdered. She is the first of Jack the Ripper's confirmed victims.
September 8 » In London, the body of Jack the Ripper's second murder victim, Annie Chapman, is found.
December 22 » The Christmas Meeting of 1888, considered to be the official start of the Faroese independence movement.
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).
January 26 » The Hale telescope at Palomar Observatory sees first light under the direction of Edwin Hubble, becoming the largest aperture optical telescope (until BTA-6 is built in 1976).
February 17 » Chaim Weizmann begins his term as the first President of Israel.
March 1 » Indonesian Army recaptures and occupies for six hours its capital city Yogyakarta from the Dutch.
March 10 » Mildred Gillars ("Axis Sally") is convicted of treason.
September 29 » The Communist Party of China writes the Common Programme for the future People's Republic of China.
November 7 » The first oil was taken in Oil Rocks (Neft Daşları), oldest offshore oil platform.
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 22, 2026), "Hendrik Mertens (1865-1949)".
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