Which document announced American independence?

The document that announced American independence is the Declaration of Independence. This pivotal text was adopted by the Continental Congress on July 4, 1776, and it formally declared the thirteen American colonies as independent states, no longer under British rule. By articulating the colonies' grievances against King George III and asserting their right to self-governance, the Declaration emphasized the principles of individual liberty and justice.

The other documents listed served different purposes in American history. The Constitution established the framework of the federal government and its laws, while the Articles of Confederation outlined the first form of national government, but both came after the Declaration of Independence. The Bill of Rights, which comprises the first ten amendments to the Constitution, was intended to protect individual liberties and limit government power, but it was not involved in declaring independence. Thus, the Declaration of Independence stands out as the foundational document that marked the beginning of the United States as an independent nation.