Answer:
Decline in trade - shift to a rural society
Explanation:
The fall of the Roman Empire brought significant changes in the mode of rule and governance. After the fall, the empire was governed by the warrior kings. The traditional and community guidelines were given priority than the written laws. There was a drastic change in the economic stability of the empire as well. The economy inclined towards the agricultural sector as the result of the collapse of the trade. It was because of the decline in the trade that shifted the empire towards the rural society.
Yes, Brazil had a king who didn't want an outbreak, so he gave up his throne, made Brazil independent and fled back to Portugal.