the great race
Because in 1866 trains the central pacific,the union pacific they raced to see who could build the most miles.After a year the union pacific had 540 miles and the central pacific had only 40 miles because the central pacific had to go through snowstorms and avalanches and other natural disasters.
there was over 30000 workers, Charles Crocker hired Irish worker James Hurvey Star bridge. there were 2000 Chinese men working in the 1830
by 1825 the us was beginning to industrialize. in 1800 the us was a rural country.