What is the main purpose of Ferdinand's voyage in the east?

Ferdinand Magellan's voyage to the east, which began in 1519, aimed to find a westward route to the Spice Islands (the Moluccas) to establish a direct trade route for valuable spices. This expedition was significant as it sought to enhance Spain's global trade and assert its presence in the lucrative spice market, dominated by Portugal at the time. Additionally, Magellan's journey ultimately led to the first circumnavigation of the Earth, providing crucial insights into global geography and navigation.