Are sumerians and mesopotemia the same?

Why didn’t the united states participate in the league of nations? the u.s. senate did not want the country to join. president wilson did not want the country to join. the league of nations was only for european countries. the league of nations had failed to prevent world war 1

Could anything have been done through compromise to stop it, or did it have to happen?

(05.04 mc) how did the roman transportation system keep the empire strong? plz