What region is known for it's social welfare programs?

the name of the theory is landmass theory.

whats the video? can u send a link?

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.

jazz

explanation:

jazz music began as a new, underground style which utilized the hopefulness of african americans in their quest for equality.