Past civilizations were not concerned as today with human rights and so used other people as cheap labor.
Slavery was common in the ancient world
he invent the WWW to search in to the world wide web
Where slavery begin
In some parts of the world, slavery would still exist.
read robin blackburn, the answer is in there.
Yes, in the ancient world slavery was almost ubiquitous.
The first map of the world
Unfortunately, Slavery is alive and well in many parts of the World.
Slavery has happened because of controlling and racist people in the world.
there has been slavery since there have been people!
He did not invent anything. If you are looking for the map, He did in fact make the "New World" map for South America
cause he wanted to invent lots of objects for the world