Why do some south/central americans look asian?

Ancient Asians traveled from Asia to North America and became Native Americans. They were then introduced to the Europeans (mainly the Spanish) so they began having children who were Native American/Spanish. Now, the Spanish are actually descendants of Arabian people, because the Moors conquered and ruled that area for hundreds of years. Arabian people originate from the Middle East and Asia. So South Americans actually have Asian and Middle Eastern blood in them, although it's thousands of years ago.