King Ferdinand and Queen Juana owned America because they were part of the royal family that had sent the first fleets to America.
On October 12, 1492, a group of three caravels commanded by Christopher Columbus reached land after two months in what they believed to be the East Indies. However, they later realized that it was an unexplored land.
When the crown of Castile and Aragon began the conquest and colonization of this territory, it became part of the Kingdom. Therefore, the king Fernando and Queen Juana were absolute owners of this territory in America.
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