British lost
The cannons were placed in the Roxbury area in Boston during the Siege of Boston. The Siege of Boston occurred from April 19, 1775 to March 17, 1776.
May 10, 1775, was the Capture of Fort Ticonderoga, which occurred during the American Revolutionary War. This broke the standoff at the Siege of Boston.
This was the HMS Lively in June 1775 during the Siege of Boston.
The siege against British troops at Boston
It was the opening phase of the American Revolution war. The colonial militias surrounded Boston, preventing the British from leaving by land and preventing supplies from entering by land. The siege ended when the British left by sea after canon were put in place on Dorchester Heights, overlooking the town.
Siege of Kut happened in 1916.
Siege of Olomouc happened in 1758.
Siege of Kanbara happened in 1569.
Siege of Privas happened in 1629.
Siege of Trarbach happened in 1734.
Siege of Urgun happened in 1984.
Siege of Maastricht happened in 1673.