What are the first twelve states?

The first twelve states to ratify the United States Constitution are Delaware, Pennsylvania, New Jersey, Georgia, Connecticut, Massachusetts, Maryland, South Carolina, New Hampshire, Virginia, New York, and North Carolina. Delaware was the first to ratify on December 7, 1787, while North Carolina was the twelfth, ratifying on November 21, 1789. These states were pivotal in forming the foundation of the United States as we know it today.