We might also add Shay's Rebellion, Bacon's Rebellion, the Hudson River Renters' Uprising, the Pullman Strike, the Homestead Strike, the Ludlow Massacre, the Lawrence Textile Strikes, etc., etc. Many of these were full-scale insurrections. This country's "progress" is really just a series of grudging concessions made by authoritarian power structures to various nearly catastrophic crises.

I have a hard time comparing any of these histricaly important but comparatively minor events to the half a million dead of the Civil War or the 50,000+ dead of Vietnam. Perhaps you have extended the analogy a little too far?...

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What I find most interesting about this chronology is that the upheavals occur approximately every hundred years since our founding. The fact that the present problems we are having w/ the administration recognizing and the general populace demaning their civil liberties/rights is apparently early by approximately 70 years. Perhaps the present administration is really as progressive as they claim...:) Take care.

Good observation about periodicity, Jim, but I'd say that the typical span is much shorter than 100 years.

Considering that (taking my example) there have been only 2 'major' upheavals since the founding fight we probably have way too few data points to draw any real comparison about periodicity. I was making the comment more to goad others to respond than to make any absolute statement about the periodicity. Also, one must be careful about how you defind 'major' upheaval. This country has had lots of turmoil in its history and as long as that will continue to be allowed I suspect we have a good chance of staying around as a union. The reality is that while many of the turmoils have had national import they were not at the time of the event of national range.