Changes

Slavery died out peacefully in most countries because it was unprofitable, as in the Roman Empire and in Brazil in the 1880s.

Slavery died out peacefully in most countries because it was unprofitable, as in the Roman Empire and in Brazil in the 1880s.

Although slavery is outlawed in most countries today, it is still practiced by Arabs in parts of Africa.

Although slavery is outlawed in all countries today, it is still practiced by Arabs in parts of Africa.

==U.S.==

==U.S.==