Please help with this.

List two inventions that were invented in the united states before the american civil war

To what extent do you think the roman republic was democratic?

If the imperial dynasty had continued to rule china, it is most likely that a) the economy would have improved rather than weakened b) european nations would have gotten more of a foothold in china c) revolutionary groups would not have gained any power in the country d) communism would not have received support among the poor