January 25 » Shays's Rebellion: The rebellion's largest confrontation, outside the Springfield Armory, results in the killing of four rebels and the wounding of twenty.
May 25 » After a delay of 11 days, the United States Constitutional Convention formally convenes in Philadelphia after a quorum of seven states is secured.
June 20 » Oliver Ellsworth moves at the Federal Convention to call the government the 'United States'.
July 13 » The Continental Congress enacts the Northwest Ordinance establishing governing rules for the Northwest Territory. It also establishes procedures for the admission of new states and limits the expansion of slavery.
August 6 » Sixty proof sheets of the Constitution of the United States are delivered to the Constitutional Convention in Philadelphia, Pennsylvania.
October 1 » Russians under Alexander Suvorov defeat the Turks at Kinburn.
Day of death February 25, 1860
The temperature on February 25, 1860 was about -3.6 °C. The air pressure was 0.5 kgf/m2 and came mainly from the south east. The airpressure was 77 cm mercury. The atmospheric humidity was 91%. Source: KNMI
From March 18, 1858 till February 23, 1860 the Netherlands had a cabinet Rochussen - Van Bosse with the prime ministers J.J. Rochussen (conservatief-liberaal) and Mr. P.P. van Bosse (liberaal).
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
May 3 » Charles XV of Sweden–Norway is crowned king of Sweden.
May 5 » Giuseppe Garibaldi sets sail from Genoa, leading the expedition of the Thousand to conquer the Kingdom of the Two Sicilies and giving birth to the Kingdom of Italy.
May 18 » Abraham Lincoln wins the Republican Party presidential nomination over William H. Seward, who later becomes the United States Secretary of State.
June 30 » The 1860 Oxford evolution debate at the Oxford University Museum of Natural History takes place.
December 20 » South Carolina becomes the first state to attempt to secede from the United States.
December 29 » The launch of HMSWarrior, with her combination of screw propeller, iron hull and iron armour, renders all previous warships obsolete.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P23967.php : accessed January 1, 2026), "Frederick Mason Sr (1787-1860)".
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