The cotton gin influenced the westward expansion because it saved waste time, clothes could be made faster, and the south needed more slaves to pick the cotton.
The cotton gin affected the country because clothes could be made faster.
Slaves had to pick cotton painstakingly and separate the seeds and it wasted time to do other things.
The Industrial Revolution was the transition to new manufacturing processes in the period from about 1760 to sometime between 1820 and 1840.
The cotton was demanded so the South needed more slaves to pick the cotton.
Eli Whitney introduced the cotton gin in 1794. The cotton gin was a machine that easily separated the seeds from the cotton.
The cotton gin affected the westward expansion because it discouraged it because it gave the South more economics.