Why were early americans were called indios?

Explanation:

Columbus set sail with the idea of discovering a sea route to the Indies. Thus, when he landed on San Salvador, he named the inhabitants Indios (Indians.) Historians have believed that Columbus first made landfall in the New World on the island of San Salvador, on 12 October 1492. Today, some historians are not sure that the first landing was on San Salvador.

2 is armenia i think

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).