- Tensions between the British colonies in America and Britain had been escalating for several years due to issues such as taxation without representation, trade regulations, and colonial autonomy.
- In April 1775, tensions culminated in the Battles of Lexington and Concord, marking the outbreak of the American Revolutionary War.
- In May 1775, the Second Continental Congress convened in Philadelphia to discuss the colonies' response to the conflict. Notable events and developments during this time included:
* Formation of the Continental Army with George Washington as Commander-in-Chief.
* Thomas Paine's influential pamphlet "Common Sense" was published, advocating for American independence.
- Throughout 1775, conflicts and battles between British forces and Patriot militias continued and intensified in places like Bunker Hill, Boston, and Ticonderoga.