Which document, prepared with James Otis in 1768, rallied against the Boston Massacre and inflamed anti-British sentiments?

The Massachusetts Circular Letter, prepared in 1768, played a crucial role in rallying public opinion against British policies, particularly following the Boston Massacre in 1770. Authored by James Otis and Samuel Adams, the letter was a powerful statement denouncing British impositions, such as the Townshend Acts, which American colonists found oppressive. It called for unity among the colonies to resist British authority, which helped to unify colonial resistance and escalate anti-British sentiments.

This document's significance lies not only in its immediate impact on opinion in Massachusetts but also on the larger movement it inspired across other colonies. The circulation of the letter prompted more widespread discussions about colonial rights and liberties, contributing to the growing revolutionary spirit that characterized the period leading up to the American Revolution. It symbolized the emergence of organized resistance against British rule, laying the groundwork for future revolutionary actions.