It depends how far back you are talking about. If you are talking back to the 1700s it would be cotton. If you are talking about a time period even father back than that, sorry, I can't help. Hope this helped.
I think this is what your looking for
The correct answer is He supports the bipartisan measure
Explanation: Considered one of the greatest presidents of the United States, Ronald Reagan was a controversial political figure. His opponents ridiculed him for his diplomatic gaffes and called him the "unlucky cowboy." In contrast, he was responsible for one of the most significant highs in the US economy and left the government with a popularity of over sixty percent.
the answer to this question would actually be through a loan.
hope this helped you.