Why did the ratification debate continue even after 9 states had approved the Constitution?

How has the immigration of the 1990s affected the social and economic life of the united states?

If an atom has 35 protons in the uncles , how many elements will it have orbiting the nucleus

Which civil rights act banned discrimination against any person based on race or color? 14th amendment 15th amendment civil rights act of 1964 voting rights act of 1965