Why was Lisbon Spain important to Columbus?

Lisbon was crucial to Christopher Columbus for several reasons. It served as a major maritime hub during the Age of Exploration, providing Columbus with access to vital resources, knowledge, and networks of support for his voyages. Additionally, Lisbon's strategic location on the Atlantic made it an ideal launching point for transoceanic expeditions. Columbus also sought financial backing from Portuguese monarchs, although he ultimately turned to Spain for support in his quest to reach Asia by sailing westward.