I dunno, man, everything is left. When do you decide that property is property or left? Or put another way: If someone said that your property was stolen from his family 100 years, would you give it back?

This is a hard problem (see the conflict in Israel) and there’s not any good solutions.

I’m sure as a patriotic Nigerian you feel strongly about their return, but it’s also important to realize that the patriotism is artificial in the first place.

The problem with ancient material culture is that once it's gone, it's gone. We have an obligation to the scholars and peoples of the future to preserve material culture for their study and appreciation.