Neither Columbus or Leif Erikson discovered the 'New World'. No, Americum; a roman sailsman did. And because of the expansionism of the romans they started to settle the continent. One beautiful place for a settlement was the island Man-Haa-Taan, which they recalled in New Pisae. The island was a safe place against the native americans. But the native americans where furious with the conquest of their country. And the (from europe) imported horses made them feared warriors.