In March 1827, the legislature signed Article 13 into law. Despite the law complying with some of his requests, Austin called it "unconstitutional." He contested the law as it freed the children of slaves at birth, established a six-month grace period before fully emancipating all slaves in the state, and included provisions to improve the conditions of slaves and transitioning freedmen. Austin –– who had been so effective in persuading the legislature, however, that the author of Article 13 (before its passage) requested to withdraw it –– helped his colonists evade the law by advising them to legally supplant the word "slave" with the words "workingmen," "family servants," and "laborers," and by working to pass a decree that banned freedmen from Texas and forced emancipated slaves to work for their former slaveowners until the accrued "debt" (e.g. clothing, food), incurred for their own enslavement, was worked off.