Why did the early Americans called Indios?

Columbus's logic behind his amazingly daring leap into the unknown was true: if the world was round, he would ultimately reach India and he called the Americans as Indians.

Explanation:

The rustic Italian inventor set out westward from Europe on one fine day in 1492, aspiring to arrive India by a western route as faced to the eastward one that the explorers and traders of the day used to travel by, irrespective of whether he traveled east or west. And so he set out, Into the Atlantic Ocean. On a voyage that no one, not even his crew, really believed in.