The correct answer to this open question is the following.
During the Constitutional Convention held in the city of Philadelphia, Pennsylvania in 1787, delegates met to discuss the new form of government for the United States. Federalists led by Alexander Hamilton, John Jay, and James Madison, supported a central government as the new form to rule the United States.
However, many Antifederalists concluded that the United States needed a free republic as a model for the new government after they studied ancient Greek and Roman republics.
Antifederalists did not agree on the idea of having a strong central government as the Federalists proposed. Antifederalists argued that a strong federal government could turn into tyranny, as was the case of the English monarchy. So during the Constitutional Convention in the city of Philadelphia, Pennsylvania, Federalists led by Alexander Hamilton and John Jay, debated and argued with Antifederalists who supported a simpler form of government that included rights for their citizens.
When it came the time to ratify the Constitution by the states, Federalists wrote the Federalists Papers under pseudonyms. Antifederalists did something similar.
However, it was until James Madison wrote the Bill of Rights, that the Constitution was ratifed. The Bill of Rights is the first ten amendments to the United Sy¿tates Constitution.