Humanity has risen!
SasqWatch
It might have been a Christian but there is nothing in the Bible to justify the abolition of slavery. Nothing.
Actually it is not true.
Slavery as per biblical standards is very misunderstood. In the old testament and for the Jews, slavery basically existed because there was nothing like social assistance and the needy had nothing to sell but themselves to be provided for. After a while the slaves could become free too.
In the New Testament slavery is not justified in the letter of St Peter and St Paul. Some people say that they do, but what they are really saying is that slaves should keep a dignified and mature attitude even though they are kept in a servile position.
Also in the New Testament there is the story of St Paul encountering in prison a slave who has been converted to Christianity. He writes to his master telling him to welcome him back not as a slave but as a brother in Christ.