1) Portugal led early European exploration in the 1400s, seeking new trade routes to Asia. Prince Henry established a school of navigation to aid exploration. Bartolomeu Dias sailed around the Cape of Good Hope in 1487, and Vasco da Gama reached India by sailing around Africa in 1497.
2) Christopher Columbus sailed west in 1492 hoping to reach Asia, but landed in the Americas instead. He incorrectly believed he had reached Asia and called the native people "Indians."
3) Spain funded Columbus's voyage seeking new trade routes and hoping to spread Christianity. His successful first voyage led to three more trips, establishing the first permanent European colony in the Americas.