2ways the world wars changed the u. s

answer:

in wwii u.s.a started making nucular bombs. the civil war made it so there is no slavery in the us.

explanation:

answer; (73%);

the first two-party system consisted of the federalist party, who supported the ratification of the constitution, and the democratic-republican party or the anti-administration party (anti-federalists), who opposed the powerful central government, among others, that the constitution established when it took effect in