Assuming you meant to ask "what document covered the United States immediately after the Revolutionary War", the answer is The Articles of Confederation.
The Articles weren't what we currently think of as a Constitution - that is, they weren't a single defining document outlining how a government was to be set up. Rather, they were a series of agreements between various States talking about how they were going to group govern.
The preamble
as America has only one constitution, it is known as 'The Constitution'.
James Madison (later the 4th US President) is hailed as the "Father of the Constitution" for being instrumental in the drafting of the US Constitution as well as the key author of the first ten amendments, collectively known as the Bill of Rights.
There are 27 amendments in the US Constitution.
Connecticut is known as "The Consitution State" because it was the first of the original thirteen states to ratify the new US Constitution.
Delaware was the first state to approve the US Constitution.
Delaware was the first state to ratify the US Constitution.
Cities did not ratify the US Constitution only States. Delaware was the first.
The First Three Words of the US Constitution are "We The People".
The Bill of Rights is the first ten amendments to the US Constitution.
The First Three Words of the US Constitution are "We The People".
The Articles of Confederation served as a Constitution.