What document was adopted July 4 1776?

Declaration of Independence

The documented adopted on July 4, 1776 was the Declaration of Independence, which declared the United States a free nation separate from England.

The Declaration of Independence was adopted and signed on July 4, 1776.

July 4th 1776

A Declaration of Independence. This is why in the US the 4th of July (Declaration Day) is a national holiday.