It depends what century your are talking about. If we are talking about the cotton gin that was made by Eli Whitney, the cotton gin made it easier to make cloths. And the Lowell girl were the first good job were they were allowed women to do things.
The first engagement by African-American soldiers against Confederate forces during the Civil War was at the Battle of Island Mound in Bates County, Missouri on October 28–29, 1862.
The correct answer is a preview
Explanation: A Preview is something done or said in advance, before anything else.
Investing in education or job training
The Ice Age taught people to migrate.
