Chap 6 Sec 2

Thirteen original states (they signed on before 1790)
Then...
  1791 - Vermont
  1792 - Kentucky
  1796 - Tennessee
  1803 - Ohio

The Industrial Revolution begins when inventors made machines that could do the jobs that people had always done.

The War of 1812 helped American industry to grow..

The steam engines could drive machines. Factories no longer had to be built only on rivers. Soon steam engines were also powering ships and railroads.

The components of a product were made alike so that they could be used in any gun the factory made. The parts were called interchangeable parts. This led to mass production, or making large numbers of goods quickly and cheaply.