S L A V E R Y
Prophet Muhammad (peace be upon him), 570 - 632 AD, said "He will not enter paradise who behaveth ill to his slaves. The companions said, "O Apostle of God! Have you not told us, that there will be a great many slaves and orphans amongst your disciples?" He said,"Yes; then be kind to them as your own children, and give them to eat of what you eat yourselves. The slaves that say their prayers are your brothers." and "..yield obedience to my successor, although he may be an Abbysinian slave."
The first call to prayer at the Quba mosque built by Prophet Muhammad was given in 622 by Bilal - a black slave freed by the Prophet. On the contrary, The Supreme Court of the United States declared in 1857 that the slave Dred Scott could not sue for his freedom because he was not a person, but property.