In the United States, industrialization started in the 1790S.
Industrialization refers to the transition to new manufacturing process from old and traditional method of manufacturing products. It began in USA around 1793, when Samuel Slater, an English immigrant opened a textile mill at Rhode Island.
To stop japan from making anymore damage to the american soil. he basically just wanted to show them that would not give up easily and ww2 was a big turning point for us because we showed the world our power. (we defeated japan alone) <span />
Old or 20th centuries?
it makes it easier to answer :D