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.
The siege of Boston ended with the British troops evacuating the city. They had to wait in Boston Harbor for a number of days for the wind to be favorable enough to set sail out of the Harbor.
Siege of Suemori happened in 1584.
Siege of Tripoli happened in 1102.
Siege of Doullens happened in 1595.
Siege of Trsat happened in 799.
Siege of Ostend happened in 1604.
Siege of Shkodra happened in 1474.