Please Help! What African empire fought off the Italians, maintaining their independence? Why were they successful
when almost all of Africa was not?

The Battle of Adwa was a battle between Ethiopia and the Italian colonial army. Ethiopia was one of the only African empires that maintained their independence, so yes, they were successful in the battle, because of their advanced weapons and ability to adapt to the advancement of the Europeans

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

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

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