What was the name of the document that would be added to the U. S. Constitution to make the anti-federalist

The Bill of Rights

Explanation:

The citizens of the United States of America who have a stronger federal republic and supported the US Constitution were called the Federalist. While those people who did not support the ratification of the US Constitution for a favor of a small and a localized government were called the Anti-federalist.

According to the Anti federalist, the constitution of the US gave much power and freedom to the central Government and so they were is favor of Bill of Rights to be included in the Constitution which will protects the rights of the citizens of America.

Therefore, the Bill of Rights were added to the Constitution in the year 1791 to gain the support of the Anti Federalist.

after the french-indian war.