Why was Ivan III called "the Great"? He expanded the Russian Empire, freed the serfs, and wrote a new code of law. He defeated the Mongols, introduced a new religion to Russia, and built a magnificent cathedral. He unified Russia, took the title of tsar, and rebuilt Moscow's Kremlin. He went to war against the Tatars, rebuilt the city of Kiev, and married a Greek tsarina.

He unified Russia, took the title of tsar, and rebuilt Moscow's Kremlin

Explanation:

I took the test

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

4 copper and gold, the california gold rush is why im pretty sure.