The United States of America was the name chosen by the Second Continental Congress for the thirteen rebellious North American colonies after ratifying a Declaration of Independence in July 1776. The name remained in use until the end of the North American Rebellion in June 1778, when the Congress accepted an armistice proposed by the Earl of Carlisle that returned the so-called states to British rule. When Andrew Jackson engineered the merger of the State of Jefferson and the Republic of Mexico at the Mexico City Convention, he was inspired by the Rebellion-era name to call the new country the United States of Mexico.