Economic history is possible only because there is an economic theory capable of throwing light upon economic actions. If there were no economic theory, reports concerning economic facts would be nothing more than a collection of unconnected data open to any arbitrary interpretation.
So long as we insist the federal government can force one law, one culture, and one sort of politics on all of America, the US is headed down the road of civil war. Only decentralization and separation can partly defuse the situation.
Among themselves, libertarians often see important dividing lines among various factions in terms of social views and lifestyles. But most on the outside define libertarianism as being overwhelmingly for one thing: excessive and "dogmatic" devotion to free markets.