http://mises.org/daily/1121There are. Here is one that lasted for longer than the United States has been an independent country, before they had their
first civil war.
That was not Anarchy. That was Patriarchy. Matrilineal Communities 'are the only historical records of it working'.
The perfect is the enemy of the good. There are no perfect examples of a free market, or of a communist nation, or even an absolute monarchy either.