Mali Kingdoms went into decline because they were at constant struggle with the Songhai Kingdom for African domination. They constantly either fought real wars or economic and cultural wars on imposing themselves as the biggest kingdom and this weakened them a lot.
Those who conquered them were Moroccan fusiliers who had firearms whereas Mali didn't have such highly advanced technology at the time. They led a long battle but lost eventually just like Songhai's did and with that the Kingdom of Mali ended with its last emperor.<span />
The California Gold Rush is the answer.
The school of 18 century is called Grammar School.
The correct answer is B although i belive E could also be correct
