How do you think the invention of the telegraph changed life in the
United States?
How did canals and railways transform trade in the
interior of the United States?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.