February 14 » The Mapuches launch coordinated attacks against the Spanish in Chile beginning the Mapuche uprising of 1655.
March 25 » Saturn's largest moon, Titan, is discovered by Christiaan Huygens.
May 19 » The Invasion of Jamaica begins during the Anglo-Spanish War.
July 31 » Russo-Polish War (1654–67): The Russian army enters the capital of the Grand Duchy of Lithuania, Vilnius, which it holds for six years.
August 23 » Battle of Sobota: The Swedish Empire led by Charles X Gustav defeats the Polish–Lithuanian Commonwealth.
September 8 » Warsaw falls without resistance to a small force under the command of Charles X Gustav of Sweden during The Deluge, making it the first time the city is captured by a foreign army.
April 27 » Blind and impoverished, John Milton sells Paradise Lost to a printer for £10, so that it could be entered into the Stationers' Register.
May 24 » The French Royal Army crosses the border into the Spanish Netherlands, starting the War of Devolution opposing France to the Spanish Empire and the Triple Alliance.
June 9 » Second Anglo-Dutch War: The Raid on the Medway by the Dutch fleet begins. It lasts for five days and results in the worst ever defeat of the Royal Navy.
June 14 » The Raid on the Medway by the Dutch fleet in the Second Anglo-Dutch War ends. It had lasted for five days and resulted in the worst ever defeat of the Royal Navy.
June 15 » The first human blood transfusion is administered by Dr. Jean-Baptiste Denys.
November 25 » A deadly earthquake rocks Shemakha in the Caucasus, killing 80,000 people.
When copying data from this family tree, please include a reference to the origin: Peter Hjort, "Hjort family tree", database, Genealogy Online (https://www.genealogieonline.nl/hjort-family-tree/I4451.php : accessed May 4, 2025), "Hendrick Louis Gravia (1632-1667)".
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