What government was there in the neolithic age?
There was no “government” really. There were lots of small independent bands or tribes of nomadic hunter/gatherers. Each band or tribe had a leader or leaders, and each made its own decisions and lived more-or-less independently of each other. It was only when humanity developed agriculture and settled down in permanent villages, which later grew into cities, that “government” developed. The first form of government was a monarchy — the tribal chieftain gradually became the king of a city-state.