The people who owned them.
Slaves came to ancient Rome through slave traders from Europe and Middle East.
Yes they did!
had slaves
slaves
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Abandoned children in Rome were made into slaves, fathers had the right to sell their children as slaves, and slaves were also captured in wars and brought back to Rome to be sold.
No, they did not, nobody had time or inclination to educate slaves.
the heavy taxes in rome are when slaves are sold
The Pharaohs told the slaves directly or sometimes they sent their men to inform them.
If both your parents were slaves then you were a slave from birth.
Slaves could only travel with their masters.
Yes.