What is the significance of the year 1776 in American history?

The year 1776 holds immense significance in American history primarily because it marks the writing and adoption of the Declaration of Independence. This document, crafted by Thomas Jefferson and other founding fathers, formally proclaimed the thirteen American colonies' intention to sever political ties with Great Britain. It articulated the colonies’ grievances against King George III and outlined the philosophical justification for independence, emphasizing the principles of individual rights and self-government.

The Declaration of Independence not only signified the colonies' desire for sovereignty but also laid the foundation for the American identity and democratic ideals. It inspired subsequent movements for freedom and equality both within the nation and around the globe, signifying the principles that would guide the new nation.

The other options pertain to significant events in American history, but they do not accurately represent the pivotal moment of 1776. The signing of the Constitution happened later, in 1787, while the ratification of the Bill of Rights occurred in 1791. Although the Revolutionary War began in 1775, 1776 is specifically noteworthy for the formal declaration of independence established through the Declaration.