1) New sailing ships, compasses, and gunpowder weapons gave European explorers technological advantages over other regions and allowed them to explore and colonize much of the world.
2) Portugal was an early leader in exploration, sending Henry the Navigator, Bartolomeu Dias, and Vasco da Gama to sail around Africa and reach India. Spain also explored and conquered lands, with figures like Columbus, Vespucci, Magellan, Cortes, and Pizarro.
3) Many European powers established colonies in the Americas and traded goods, slaves, and precious metals, fueling economic growth and the rise of mercantilism.