How did technology affect American life in the late 1800s

Advanced the world by new technology such ad railroads and guns and telegraphs this got messages faster to people and made it possible for faster trading

It evolved into people having mass corporations and making a large amount of products. People started to rely less people in farming, and more people when operating machinery. Free slaves and poor income families are able to find jobs at low wages by working in factories. People were at risk of having black lungs working in the coal mines (especially kids). People were at risk of getting hurt in other factories due to no safety regulations.