The Lex Poetelia Papiria was a law passed in Ancient Rome that abolished the contractual form of Nexum, or debt bondage. Livy dates the law in 326 BC, during the third consulship of Gaius Poetelius Libo Visolus, whereas Varro dates the law in 313 BC, during Poetelius' dictatorship.
References
Lex Poetelia Papiria Wikipedia(Text) CC BY-SA