How did President Franklin Roosevelt's New Deal get the American economy back on track?

In the early 1930s, the Tennessee River Valley used to flood every spring. FDR created the Tennessee Valley Authority to fix the problem.

Elected in 1933, Franklin D. Roosevelt was a reassuring presence for many Americans through the trials of the Great Depression.

The 1939 World's Fair in New York City tried to predict what life would be like beyond the 20th century. "Elektro" is a perfect example.