Economic downturns in American history have ranged from mild recessions to severe depressions.
The worst downturn in U.S. history lasted from 1929 to 1941
This 2007-09 economic downturn was the longest since WWII
The deep, protracted downturn in 2007-09 was followed by an unusually slow recovery
This economic downturn was triggered by tight monetary policy in an effort to fight inflation
America's third-worst downturn of the 20th century