Answer Defeat in the Crimean War exposed Russia's lack of development in relation to its European neighbors.
Answer:
The ban against enslaving Muslims was observed very strictly in Hausaland in many ways. For example. if a non-believer would become a Islamic so called "believer", he would no longer would be someone's possession (slave). This is somewhat illogical because anyone could say that they are a Muslim just to become a free man or woman.
Explanation:
I majored in History
Most likely the answer will be b because it is secondary.D could also be a choice but I recommend B
Answer:
Civil wars. Probably the most important single cause of Byzantium's collapse was its recurrent debilitating civil wars. Three of the worst periods of civil war and internal infighting took place during Byzantium's decline.
Explanation: