Nevermind those anarchistic city-states of Greece that spawned much of western philosophy and even the beloved democracy. Or anarchistic post 500 AD England that developed our modern civil court system. Or post 900AD Iceland, with it's vastly more efficient private protection systems, and violence levels on the order of those in America today.
Greek city states didn't have governance on country scale, but they usually were centrally organized. Either ruled by a single person or by a small group of people.
Now, if you could provide some actual proof for these developments...
Most of the basis for our social norms were already written as history in the bible.
Even the egyptians had advanced social norms more than 5000 years ago.
So please tell us what social norms were invented by british anarchists in 500 AD that were unknown to other bigger previous civilizations.
It's not that i want to exclude anarchy, it just didn't play a very important role in creating these big societies that merged into the world market. There were no examples of large anarchies. If it is large it canot be purely an anarchy.
The whole point of getting centrally organized is to get past the limitations of anarchy.
Anarchy never managed to create a big stable complex society. All examples of anarchy deal with small numbers of people.
Governance emerges when such groups start to interact and fail to solve their conflicts.
So of course anarchy is the first and easiest way to organize yourself. But it has limits and does not scale.