Because of pollution and over hunting
I don't know what the original empire was, so I don't know what the "others" are, but here some examples:
- the Aztec empire. Contribution: the cultivation of cocoa plant
-the Roman Empire. Contribution: roads, aqueducts, spread of latin script
- Islamic Empire. Contribution: maintenance of ancient Greek knowledge in their libraries and contributions to medical knowledge
Answer:
Local governments have a responsibility to protect immigrants by establishing themselves as sanctuaries. Requiring local law enforcement to serve as immigration agents erodes trust between the police and immigrant communities. The U.S. government cannot commandeer local resources to further its extreme anti-immigrant agenda.