Convenient narrative transitions? More words.
FEUDALISM
A result of the decentralization of an empire, feudal societies replaced strict bureaucracies with “manorialism.” This involves a lord of a manor and peasants attached to the land from birth.
Then you add a
roaming warrior class
to lay down the law and assemble armies.
These last bad asses were the knights of medieval Europe or the samurai of Japan for example. It’s like diet-empire, all the territory but with a fraction of the overhead.
Around the world empires had fractured into feudal stasis with peasants further devolving into serfs as they incurred generational obligations for living on
other people’s land
As the lowest members of “civilization,” serfs were barely a step above slaves since they could even be bought sold or traded.