What disaster was reversed by government spending on public works

Roosevelt Recession was reversed by government spending on public works.

Explanation:

The time period between mid 1937-1938 when the economic when the economic recovery from the great depression stalled is referred as Roosevelt Recession. In this period of time the economy of the country was going downhill. The unemployment from 14.3% to 19%. It was one of the important moments in the history as the lessons drawn form the Roosevelt Recession convinced the FDR to deficit spending and monetary expansion were critical to economic recovery.