Why did people call Wagadou The Empire of Ghana?

The Ghana Empire ( c. 300 until c. 1100), properly known as Wagadou (Ghana being the title of its ruler), was a West African empire located in the area of present-day southeastern Mauritania and western Mali.

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the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

not sure but thinking i'ts cause the government was broke. not sure