What was Magellan trying to accomplish when he proposed an expedition to King Charles I, of Spain?

(See explanation for further details)

Explanation:

Magellan proposed to King Charles I of Spain and V of the Holy Roman Empire that a journey to the Spice Island was possible without going across the Portuguese side of the world, established by the Tordesillas Treaty.

a. by accepting the election of president abraham lincoln in 1860 and convincing other southern states to do the same