I believe yes it’s ethical
Severe was appropriate because it described their behavior. They were strict, cruel, ruthless, and severe to the slaves. If the slaves were tired or couldn't work or were perceived as problematic in any way, they would get flogged or severely beaten or even killed without any regard for them or for others in general.
Moral crusades crusades
The moral crusades often associated with conservatives and the moral majority sparked off in the 1970's when conservatives gained root over the liberals and liberal thoughts. it culminated with the election of R Reagan.
Could you show a picture of the map please? if not, i will try my best to find out
Things such as religion and other cultures traditions were also spread along the Silk Road Trade routes.
