Why did the leaders add the bill of rights to the cons?

The leaders added the Bill of Rights to the Constitution to address the concerns of Anti-Federalists who feared that a strong central government could infringe upon individual liberties. By including these first ten amendments, they aimed to protect fundamental rights such as freedom of speech, religion, and assembly, thus ensuring that citizens' rights were explicitly safeguarded. This addition helped to secure broader support for the Constitution during its ratification process. Ultimately, it was a crucial step in balancing governmental power with the protection of individual freedoms.