Answer:
Revolutionary Industry :
In the late 1800s, workers organized unions to solve their problems. Their problems were low wages and unsafe working conditions.
Workers formed local unions in single factories. These unions used strikes to try to force employers to increase wages or make working conditions safer.
New regulations were imposed to shorten the work each week and to make factories safer.
19th Century
Industrialization substituted steam engines for animals, machines for hand tools, and elevators for ladders.
Pretty sure it is "gold", you know with the California Gold Rush, and 49ers and all that. :)
