The History of Slavery by Adam Gurowski

It is asserted that domestic slavery has always been a constructive social element: history shows that it has always been destructive. History authoritatively establishes the fact that slavery is the most corroding social disease, and one, too, which acts most fatally on the slaveholding element in a community.
Not disease, but health, is the normal condition of man’s physical organism: not oppression but freedom is the normal condition of human society. The laws of history are as absolute as the laws of nature or the laws of hygiene.
Contents:
Egyptians
Phœnicians
Libyans
Carthaginians
Hebrews, or Beni-Israel
Nabatheans
Assyrians and Babylonians
Medes and Persians
Aryas—Hindus
Chinese
Greeks
Romans—Republicans
Romans—Political Slaves
Christianity: its Churches and Creeds
Gauls
Germans
Longobards—Italians
Franks—French
Britons, Anglo-Saxons, English
Slavi, Slavonians, Slaves, Russians