An amendment to the North Carolina state constitution is on the ballot this year, and it's causing some confusion among voters. The authority to amend the Constitution of the United States is derived from Article V of the Constitution.The Fourteenth Amendment to the US Constitution, ratified on July 9, 1868, defined citizenship and guaranteed the rights of citizens. Below is an overview of constitutional amendment processes in the 50 states. I discuss the various possible ways of amending state constitutions. Amendment Twenty-one to the Constitution was ratified on December 5, 1933. Constitutional Amendments – Amendment 20 – "Date Changes for Presidency, Congress, and Succession". Unfortunately, these amendments were proposed a month before the Battle of New Orleans and seemed irrelevant and disloyal in the wake of this military victory. The amendment accomplished two important purposes. The Thirteenth Amendment to the U.S. Constitution ended slavery in the United States.