The economic damage wrought by the Civil War is obvious. The US was set back by 20 years by this event. It is equalled only by the Great Depression as a loss of wealth, and dwarfed by a long slide since the Oil Crisis of the 1970's which is totally beyond the scope of this blog.
Other minor economic crises are visible, the WW2 manufacturing boom is visible (and goes back down when the US enters the war). It's fairly interesting, but was simply kicking around my harddrive.