Why are the indigenous people of North America called indian by the European of 15 century

India was the original destination

Explanation:

Christopher Columbus on commission for King and Queen was in search of alternative routes to India. He decide to sail westward instead of eastward, to see if he could gain a traveling advantage over established trade routes. He only expected to find seas and oceans. So when he landed in the America's, he assumed he had arrived in India. To this day, this misnomer stuck.