>>47537830Any point before the Industrial Revolution. The Classical period would be fun, but Pokemon Conquest is likely a very good example of just how an ancient era (at least in asia) would be handled. Warlords are gonna be warlords. Pokemon in the end are resources just like any other.
>>47537845Sinnoh subtly touched on it. It was just a basic but primal time where hunter gatherers ate the weaker Pokemon they could catch and married a few others. Perhaps these "marriages" afforded ancient humanity some protection.