Most of Africa is hot, so I'd say climate change
Your role is defined as an individual.
Hannibal’s cavalry commander, Maharbal, supposedly uttered the famous phrase: “Hannibal, you know how to gain a victory, but not how to use one.” This came after Hannibal declined to besiege Rome following his victory at Cannae. A major reason for this was that Hannibal was far less skilled at sieges than field battles.
Answer:
African Americans had no voting rights from the end of the Civil War until the passage of the Voting Rights Act of 1965