Homo Sapiens were the first species to use crude tools.
So they (the slaves) were treated bad because they weren't considered human beings
Answer:
a difference between the two is that they don't share the same "religion"
Answer:
In 380 CE, the emperor Theodosius issued the Edict of Thessalonica, which made Christianity, specifically Nicene Christianity, the official religion of the Roman Empire. Most other Christian sects were deemed heretical, lost their legal status, and had their properties confiscated by the Roman state.
The answer would be, C.) Hinduism