Continental Army Fortifies Dorchester Heights
In the midst of the American Revolutionary War, British forces under General William Howe had occupied Boston since 1775, imposing a siege on the surrounding Continental Army led by General George Washington. The British controlled the city and its harbor but faced growing colonial resistance. On March 4, 1776, Brigadier General John Thomas directed approximately 2,000 American troops to move cannons and fortifications overnight to Dorchester Heights, a strategic elevated position south of Boston previously left undefended. Heavy artillery fire from British positions provided cover during the operation. By morning, the Americans had established a formidable battery overlooking the city and harbor. This development forced Howe to reconsider his position, ultimately leading to the British evacuation of Boston on March...
