@DAXminer
Term Indians came from the fact that back then Asia wasn't even called Asia and there was no India as a nation. There were hinduis kingdoms but those weren't called India.
All of the Land mass from the east of river Indus was called India. And region of China and Japan was knows as East India. All indigenous people from those regions were called Indians not Asians. So when Columbus was saying he wanted to reach India he meant China and Japan.
When Columbus reached America he thought he really reached a islands of Japan. At least according to those chinese maps he used as reference, that everyone else though must been faked by Chinese who wanted to make world believe they are largest nation ever. Which was truth, but nobody though that coincidentally that fake coordinate for were Japan was was also place were islands of Hispaniola were located.
BTW according to Chinese journals People of Japan were a bunch of primitive tribes, everyone was walking naked and they didn't know metal and writing. So with that knowledge it's really not surprising that for some time people were conviced that Native Americans Columbus saw were Indians. Or Japanese to be more precise.