2010-2020; the beginning of the first great crisis. The Saudi's stopped being able to conceal the decline in oil output about the same time most western nations finally realized that the dollar was a worthless. The US economy collapsed along with the Federal government over a period of three months, there wasen't much left. The US became divided along regional lines, much like South America... Intresting times indeed.
Seriously, The 50's were intresting.