Early civilizations around the world developed an ability to smelt metal. this led directly to which cultural innovation

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

Hey!me its for an important test! ! which issue during the progressive era would most likely have united mary harris "mother” jones and lewis hine? a) ending child labor b) regulating monopolies c) using photography to expose poor working conditions d) exposing the lack of jobs available for untrained laborers

French & indian war affect the american colonies