How many people did not think the constitution was complete and wanted to add a Bill of Rights?

Many of the Founding Fathers, notably the Anti-Federalists, believed the Constitution was incomplete without a Bill of Rights. Prominent figures like Patrick Henry and George Mason were vocal in their demands for explicit protections of individual liberties. Ultimately, their concerns led to the adoption of the Bill of Rights in 1791, addressing the fears that the new government could infringe on citizens' rights. While it's difficult to quantify exactly how many opposed the original Constitution, their influence was significant in shaping the final document.