The answer to that would be Maya and Egypt. I hope this helped. If it did, ask me more questions and I will be sure to answer them! :)
Answer:
The number of representatives plus two electors
Explanation:
A state's number of electors equals the number of representatives plus two electors for the senators the state has in the United States Congress. The number of representatives is based on the respective populations, determined every ten years by the United States Census. (source ; United States Electoral College - Wikipediaen.wikipedia.org)
Kansas, Texas, Nebraska, New Mexico, Ohio, New York, Illinois, Massachusetts, Arkansas, and Missouri were all affected by the Dust bowl.
It is true he was credited but not the first to invented it just made a better version <span />