Defines citizenship as all persons born/naturalized in U.S., includes "equal protection clause", and says no state can deny a person's rights without due process of law. (ratified 1868)
A.K.A. "Lame Duck Amendment", states that the President and Vice President begin their new terms on January 20th (was March 4th); members of the Congress begin on January 3rd. (ratified 1933)