Over population is caused many people moving there for business and not enough leaving and or space or job shortage it leads to crowding and shortages
The two american empires were the Incas and Aztecs. They carried Gold and Silver.
<span>According to Robert McElvaine, one way the New Deal affected African Americans economically was that it it put many to work through public works projects that benefitted all. </span>
He is known for creating pi, the number that does not end.
The historians could be wrong without proper proof to back up their so-called "facts". Therefore, they would need to study and know what they're talking about, before presenting their statements as facts.