Cotton gin
A machine that separates cotton from its seed
Interchangeable parts
Parts o a machine or device that can be replaced by another identical part
Application
Way in which something is used
Reaper
A machine that cut grain for harvesting
Stagecoach
Large carriage pulled by horses used to carry passengers
Steam engine
A machine that uses steam from boiling water to creat power
Previous
Coming before; earlier
Immigrant
Person who lives in a country in which he or her wasn't born in
Union
Group of states or nations that are ruled by one government or that agree to work together
Manifest destiny
The belief that the United States had a right to expand its border west to the Pacific Ocean and south to the Rio Grande
Trail of Tears
The name given to the forced march of 15,000 Cherokee in 1838 from their homes in Georgia to the Indian Territory
Wagon trail
a line of wagons led west by an experienced guide
Discrimination
unfair treatment of people based on their differences
Treaty of Guadalupe Hidalgo
the treaty under which Mexico sold territory to the United States
Gold rush
the sudden rush of people to an area where gold had been discovered