Was galley slavery worse then American farm slavery?

Following the American civil war, were there instances in which enslavers attempted to conceal the loss of the south and the abolition of slavery from their enslaved workers? Would they even be able to?

What is the history of the Geneva conventions? When did states begin to recognize that prisoners of war should have rights?

Why and how did Islam become a practiced religion in Southeast Asia?

How were Rome & Carthage able to field such enormous armies?

Did any societies prior to the Enlightenment view all humans as "created equal" in any sense, including outgroup members, or is that strictly a modern idea?

Why was the lyrical presentation of hair metal bands so aggressively macho while their visual presentation was so very...not?