Answer: 3,2,4,1
Explanation:
The Muslims first conquered Egypt in 641 CE and over the next 4 decades continued to conquer North Africa until they had overrun all of North Africa.
It was after these conquests that they started hearing about civilizations South of the Sahara through the conquered people and began to visit and trade with them.
This trade flourished and brought great riches to the nations that were involved. The man arguably considered the richest in history, Mansa Musa, was King of the Mali kingdom that benefitted richly from such trade.
Along with that trade came Islamic teachings and through this medium many were converted. Mansa Musa himself was a Muslim who's riches became well known when he performed the Hajj to Mecca.
Islam then slowly spread to the south of Africa after the trade gave them a foothold in the West.
So, the correct order is,
Arabs come into North Africa, then All of North Africa comes under Muslim
rule, then The gold-salt trade flourishes on the trans-Saharan route and finally Islam spreads to western and southern of Africa.
Answer: Lack of Influence by the government.
Explanation: During the mid, to end of the Roman Empire, the government was filled with corrupt, dishonest, and weak politicians. The Emperor's were push-overs from the Praetorian Guard, and the Senators too, were scared of the Praetorian Guard. Even after the abolishment of the Praetorian Guard, the Emperor's and Senate kept seeing losses within their territory, and it ultimately caused people to lose faith within their government.
Congress according to my book
The rule of law implies rule according to law. It also implies that the government must rule under the edicts of the law. As such, may act unilaterally or arbitrarily outside the confines of the law. The government should not therefore demand civil damages or undertake criminal punishment without strict adherence to the well established and clearly stated laws and procedures. As such, doing anything contrary to this violates the concept of rule of law.