The Age of Exploration (also called the Age of Discovery) began in the 1400s and continued through the 1600s. It was a period of time when European nations, led by Portugal and Spain, began exploring the world. They discovered new routes to India, much of the Far East, and the Americas. In the 15th Century several factors combined to create the conditions needed for these voyages to take place: changes in religion, a new era of curiosity and learning, developments in technology and threats to existing land trade routes.