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Mali reached its heights peak under Mansa Musa. skillful leader. Mali reached its highest in power, wealth, and fame in the 1300s. (I have the same question in social studies. its 1c.).
probably during the fall
I think that the best way to find the cheapest flights is to sign up at one of the websites specialized in airfare deals alerts. However I think you can buy the cheapest tickets for fall - but it also depends when you buy them..