Well they became farmers because there weren't enough crops.
the battle of tippacanoe, victory of US major general William Henry Harrison over the Shawnee Indians. the US victory broke Tecumseh's power and ended the threat of an Indian confederation
Peaceful relations with neighboring American Indian groups and fertile farmland helped Penn's experiment become a success. Philadelphia grew into one of the most important cities in colonial America, becoming the birthplace of the U.S. Constitution.
I would talk about Rockefeller for sure.
