This Day in History: December 12
December 12, 2014
1787- Pennsylvania became the 2nd state to ratify US constitution. The Constitution went into effect on ratification by nine of the thirteen states. The status of the first eight as members of the federal Union in the form established by the Constitution did not exist until the ninth state, New Hampshire, ratified the Constitution in June 1788. None of the first thirteen states became states upon ratifying the Constitution, since all were already states before that.