Many barbarian tribes converted to Christianity during the fourth century after they became a part of Roman society. Many tribes migrated to Roman lands during the fourth century and were introduced to new ideas through trade. Over time these tribes adopted Roman culture and become Romanized.
It gives some power to each branch of government instead of giving all the power to one branch. 2. Legislative branch may check the executive branch by passing laws over the veto by two-thirds vote in each house.
