The scientists in the 16th and 17th centuries developed. c universal language of study
Music, he played a lot of Jazz
A)1920 due to this was the roaring 20's and later on throughout the years we started to industrialize
Often, the conditions that children and workers worked in were unsafe and they worked long hours with no rest. they worked all day. sometimes they would get stuck in machinery and get hurt or even die. also, working in factories caused health problems for many children and workers.
Demand payment of a bonus they had been promised for military service.