Although Portugal opened the door to exploration of the Atlantic World, Spanish explorers quickly made inroads into the Americas. Spurred by Christopher Columbus’s glowing reports of the riches to be found in the New World, throngs of Spanish conquistadors set off to find and conquer new lands. They accomplished this through a combination of military strength and strategic alliances with native peoples. Spanish rulers Ferdinand and Isabella promoted the acquisition of these new lands in order to strengthen and glorify their own empire. As Spain’s empire expanded and riches flowed in from the Americas, the Spanish experienced a golden age of art and literature.