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.

For decades, experts believed they knew what caused the Hindenburg disaster. But there may be more to this story.

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