<P> Having been ratified by the legislatures of three - fourths of the several states ( 27 of the 36 states , including those that had been in rebellion ) , Secretary of State Seward , on December 18 , 1865 , certified that the Thirteenth Amendment had become valid , to all intents and purposes , as a part of the Constitution . Included on the enrolled list of ratifying states were the three ex-Confederate states that had given their assent , but with strings attached . Seward accepted their affirmative votes and brushed aside their interpretive declarations without comment , challenge or acknowledgment . </P>
<P> Having been ratified by the legislatures of three - fourths of the several states ( 27 of the 36 states , including those that had been in rebellion ) , Secretary of State Seward , on December 18 , 1865 , certified that the Thirteenth Amendment had become valid , to all intents and purposes , as a part of the Constitution . Included on the enrolled list of ratifying states were the three ex-Confederate states that had given their assent , but with strings attached . Seward accepted their affirmative votes and brushed aside their interpretive declarations without comment , challenge or acknowledgment . </P>
when did the states ratify the 13th amendment
when did the states ratify the 13th amendment
December 18 , 1865
December 18 , 1865