State lines and how they were surveyed.
The 13 original states organized the Federal Union under the name of “The United States of America” by ratifying the Articles of Confederation and the Constitution. The boundaries of these states were not defined by the Acts of Ratification, but, in general, the states maintained their claim to their colonial boundaries, which had been established by royal decree or by agreement. Some overlapping territorial claims were not settled until many years later by Supreme Court decision. Other states were admitted into the Union by Acts of Congress, usually upon petition of the citizens residing in the territories in question. The boundaries of these states were defined by enabling acts. The boundaries of Missouri and Texas were changed by subsequent legislation.