Want this question answered?
Government built highways that crossed through all states
They traded and fought to help industry grow.
Communications.
It helped pave the way for American industry to expand into the West.
Steel and oil
Read your America AHON book please.
cheap and reliable workforce helped southern industry grow also factorys hleped it grow as well
Industry and manufacturing and personal labor!
Look up Andrw Carnigie He was involved alot.
Read your America AHON book please.
Democrats hand lots of land
The radio, the gramophone, the LP, Cassettes, CD, MP3, MTV, Electrically amplified instruments,