A number of countries have refused to ratify the treaty.
Lincoln's home state of Illinois was the first to ratify the 13th Amendment to the U.S. Constitution, which provided for the abolition of slavery.
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Middle English ratifien, from Anglo-French ratifier, from Medieval Latin ratificare, from Latin ratus determined, from past participle of reri to calculate — more at reason
: to make valid or effectiveespecially: to adopt or affirm (as the prior act or contract of an agent) by express or implied consent with the effect of original authorization unable to rescind the contract because he ratified it by accepting the benefits — compare reform