What was the main motivating factor of Christopher Columbus’ and Vasco da Gama’s maritime voyage?

The main motivating factor for Christopher Columbus' maritime voyage was to find a direct trade route to Asia by sailing westward. Columbus believed that by reaching Asia, he could bypass the Ottoman Empire's control over the existing routes and establish direct trade with countries like China and India. Additionally, he aimed to spread Christianity and convert people in those regions.

As for Vasco da Gama, his main motivating factor was also to establish a direct trade route to Asia, but by sailing around Africa. The existing routes, controlled by the Ottomans in the east and the Venetians in the west, posed trade restrictions and high costs. By finding a sea route around Africa, da Gama intended to bypass these obstacles and open up a direct trade connection with the lucrative markets of Asia.

Overall, both Columbus and da Gama were driven by the desire for wealth and fame, as well as geopolitical and religious motivations.