The politically influential pamphlet written by Thomas Paine that advocated independence from Britain is "Common Sense." Published in January 1776, it argued for the colonies' separation from British rule, presenting a compelling case for democracy and self-governance. Paine's accessible style and persuasive rhetoric resonated with a wide audience, significantly influencing public opinion in favor of independence. This pamphlet played a crucial role in galvanizing support for the American Revolution, arguing that it was not only necessary but also urgent for the colonies to break free from monarchical oppression and establish equitable governance.