June 1 » The court-martial for malfeasance of Benedict Arnold, a general in the Continental Army during the American Revolutionary War, begins.
June 16 » Spain declares war on the Kingdom of Great Britain, and the Great Siege of Gibraltar begins.
June 24 » American Revolutionary War: The Great Siege of Gibraltar begins.
July 6 » Battle of Grenada: The French defeat British naval forces during the American Revolutionary War.
August 13 » American Revolutionary War: The Royal Navy defeats the Penobscot Expedition with the most significant loss of United States naval forces prior to the attack on Pearl Harbor.
September 16 » American Revolutionary War: The Franco-American Siege of Savannah begins.
Day of death April 17, 1863
The temperature on April 17, 1863 was about 17.1 °C. There was 0.1 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 56%. 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.
May 17 » Rosalía de Castro publishes Cantares Gallegos, the first book in the Galician language.
May 21 » American Civil War: The Union Army succeeds in closing off the last escape route from Port Hudson, Louisiana, in preparation for the coming siege.
July 7 » The United States begins its first military draft; exemptions cost $300.
September 8 » American Civil War: In the Second Battle of Sabine Pass, a small Confederate force thwarts a Union invasion of Texas.
November 16 » American Civil War: Battle of Campbell's Station near Knoxville, Tennessee: Confederate troops unsuccessfully attack Union forces.
November 18 » King Christian IX of Denmark signs the November constitution that declares Schleswig to be part of Denmark. This is seen by the German Confederation as a violation of the London Protocol and leads to the German–Danish war of 1864.
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/P18309.php : accessed January 15, 2026), "Louisa O Callaghan (1779-1863)".
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