The document summarizes the key events leading up to American independence and the common features of the early state constitutions. It discusses Britain's increasing control over the colonies starting in the 1760s which led the colonists to form confederations and hold congresses to discuss rebellion. The First Continental Congress urged non-cooperation with Britain and the Second Continental Congress served as the first U.S. government, adopting the Declaration of Independence in 1776. The new state constitutions were based on principles of popular sovereignty, limited government, and separation of powers with checks and balances and included bills of rights protecting individual liberties.