Alexander Graham Bell invented the telephone.
Andrew Carnegie owned US Steel.
Steel Mill at night.
John D. Rockefeller owned the railroads and the oil industries
Carnegie and Rockefeller ran their competition out of business.
A monopoly is when one company controls the entire industry.
The light bulb allowed factories to work at night.
Motion picture camera
Immigrants come to the USA for jobs and opportunities.
Pull factors are good stuff to bring immigrants here like jobs.
Jobs pulled immigrants here.
Free land was a pull factor
Push factors are bad stuff to push immigrants away like war or disease. This is potato famine.
Many immigrants lived in tenements.