Answer:
In 1776, the Founders of the United States met in Philadelphia to draft the Declaration of Independence that dissolved the political ties that united the American people with Britain. Thus was born a new, free and independent nation, the United States of America. Eleven years later, in 1787, after the victory of the American patriots on the battlefield, and having won our independence, many of the men who had met before in Philadelphia met again, together with others, to establish the structure of government of the new nation: the Constitution of the United States. In 1789, after the plan had been ratified, he had the new government. Together, the Declaration and the Constitution are the founding documents of the United States.
With the amendments that have been made over the years, the Constitution is the supreme law of the country, the fundamental law of the nation. But the general language of the Constitution is illuminated by the principles established in the Declaration. Therefore, to better understand and evaluate the form of government we have, it is important to first see the Declaration where the Founders delineated their moral vision and the government it implied.