What year was the Declaration of Independence adopted?

The Declaration of Independence was adopted in 1776, specifically on July 4th. This pivotal document declared the thirteen American colonies' intent to separate from British rule, articulating the principles of individual rights and government by consent. It was a crucial step in the formation of the United States, setting forth the ideals of liberty and self-governance that became foundational to the nation. The declaration not only marked a significant moment in American history but also inspired other countries and movements around the world advocating for independence and democratic governance.

The other options are associated with important events in American history; however, they do not pertain to the adoption of the Declaration of Independence. For instance, 1783 marks the end of the Revolutionary War with the Treaty of Paris, while 1787 is notable for the drafting of the United States Constitution. The year 1775 precedes the declaration and is significant for the start of armed conflict with Britain, but it does not reflect the formal declaration of independence itself.