Manorialism
Councillors were forbidden to resign, and coloni, the cultivators of land, were not to move from the demesne they were attached to. They were on their way to becoming serfs. Several factors conspired to merge the status of former slaves and former free farmers into a dependent class of such coloni. Laws of Constantine I around 325 reinforced both the negative semi-servile status of the coloni and limited their rights to sue in the courts. Their numbers were augmented by barbarian foederati who were permitted to settle within the imperial boundaries.