Review
A Portuguese Caravel
Of course, from a global perspective Europeans did not discover the New World but from a European perspective these lands were not known until the late 1400s and early 1500s. The impulse to set sail across the Atlantic came partially from the Fall of Constantinople in 1453 to the Ottoman Turks. The Mediterranean trade that had made the Italian City-States so wealthy came to be completely replaced by these new sea routes. The caravel, improved maps and map projections (Mercator) and navigational instruments like the astrolabe and compass made this exploration technically possible. The competition among the European nations of Spain, Portugal, England, and the Netherlands and the desire to spread Catholicism during the Reformation provided additional motivation.