<P> After the American Revolution , the New York Manumission Society was founded in 1785 to work for the abolition of slavery and for aid to free blacks . The state passed a 1799 law for gradual abolition ; after that date , children born to slave mothers were free but required to work for the mother 's master for an extended period as indentured servants into their late twenties . Existing slaves kept their status . All remaining slaves were finally freed on July 4 , 1827 . </P>
<P> After the American Revolution , the New York Manumission Society was founded in 1785 to work for the abolition of slavery and for aid to free blacks . The state passed a 1799 law for gradual abolition ; after that date , children born to slave mothers were free but required to work for the mother 's master for an extended period as indentured servants into their late twenties . Existing slaves kept their status . All remaining slaves were finally freed on July 4 , 1827 . </P>
when was slavery outlawed in new york state
when was slavery outlawed in new york state
1799
1799