What was the one condition for ratification of the constitution?

Answer 1

The constitution convention established the requirement that in order for a ratification to the US Constitution to take place it must pass through the legislation with two-thirds of the vote. The amendment to the Constitution must then be sent to the states for three-fourths of the vote by the state legislature.

Answer 2

The Bill of Rights (first ten amendments to the constitution) was the one condition for ratification of the constitution.

why?.... Antifederalists feared that even though the Constitution contained protections Habeas Corpus, Ex Post Facto, and Bill of Attainder, they were not enough to protect ALL the civil liberties (unalienable rights) of the people and demanded the Bill of Rights to fulfil them.

Answer 3

The states of North Carolina and Rhode Island did not ratify the Constitution until the Bill of Rights was proposed.

This occurred after the Constitution was deemed ratified, as only 9 of the 13 states were required. The Bill of Rights (first ten amendments) was one of the first acts of the Congress that convened in March, 1789.