There were several features that helped industries grow quickly in the country after the Civil War. There was massive influx of immigrants and so there was no dearth of labor force. Also there was great improvement regarding new inventions and technological advancements. There was also great availability of raw materials like timber, oil etc.
During Jackson's time, the common white man was giving the right to vote. During reconstruction ( the period after the civil war ) voting could no longer be denied on race or color because of the 15 the amendment, but still only applied to men. Women got the right to vote with the 19th amendment in 1920.
Democracy is an elective system that the people are the government.
