Just starting points ... beware, Wiki is unreliable:
The band: http://en.wikipedia.org/wiki/The_Decembrists
The historical Decembrist Revolt: http://en.wikipedia.org/wiki/Decembrist_revolt
Part of that is the fault of ignoramus band leader Colin Meloy who thought the Decembrist revolt in Russia (when Karl Marx was about 12 years old) was somehow a Communist revolt.