Slavery was rapidly declining in Europe due to the influence of Christianity, and had all but disappeared from much of Europe when the advent of Islam brought a rebirth of the slave trade.<ref>L W Miller, Anti-Slavery Activism 101, ECM Publ, 2011</ref> | Slavery was rapidly declining in Europe due to the influence of Christianity, and had all but disappeared from much of Europe when the advent of Islam brought a rebirth of the slave trade.<ref>L W Miller, Anti-Slavery Activism 101, ECM Publ, 2011</ref> |