The doctrine of popular sovereignty was used. That meant that people in those states could choose to vote to support slavery and since they were majority then slavery would be permitted. There were even states that were at first non-slave states but then things changed and they voted to introduce slavery into the state and people voted for this and supported this.
In 1828 Andrew Jackson became the 7th President of the United States and the new political party system started- the leader of the new Democratic Party
The first curator was E.J. Berwick
Muhammad Xll was the last Muslim ruler in Spain
The fight for ratification was fought in all states separately, states like Delaware was was the first to ratify the Constitution.