The temperature on February 15, 1872 was about 5.3 °C. The air pressure was 2 kgf/m2 and came mainly from the east-northeast. The atmospheric humidity was 78%. Source: KNMI
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.
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
January 12 » Yohannes IV is crowned Emperor of Ethiopia in Axum, the first imperial coronation in that city in over 200 years.
April 10 » The first Arbor Day is celebrated in Nebraska.
June 14 » Trade unions are legalized in Canada.
July 18 » The Ballot Act 1872 in the United Kingdom introduced the requirement that parliamentary and local government elections be held by secret ballot.
September 18 » King Oscar II accedes to the throne of Sweden–Norway.
December 4 » The crewless American brigantine Mary Celeste, drifting in the Atlantic, is discovered by the Canadian brig Dei Gratia. The ship has been abandoned for nine days but is only slightly damaged. Her master Benjamin Briggs and all nine others known to have been on board are never accounted for.
Day of marriage May 20, 1897
The temperature on May 20, 1897 was about 18.2 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 61%. Source: KNMI
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of death December 12, 1938
The temperature on December 12, 1938 was between 6.7 °C and 11.2 °C and averaged 8.3 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
February 4 » Adolf Hitler appoints himself as head of the Armed Forces High Command.
April 30 » The animated cartoon short Porky's Hare Hunt debuts in movie theaters, introducing Happy Rabbit, an early version of Bugs Bunny.
June 7 » Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces. Five hundred to nine hundred thousand civilians are killed.
June 11 » Second Sino-Japanese War: The Battle of Wuhan starts.
October 14 » The first flight of the Curtiss P-40 Warhawk fighter plane.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I3876.php : accessed September 27, 2026), "PETRUS LEONARDUS van ROON (1872-1938)".
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