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In 1519, Ferdinand Megellan and his crew sailed west from Spain. They wanted to see what would happen if they kept sailing west. Three years later, they landed in Spain. They had sailed around the world.
Effect: Magellan and his crew sailed around the world.
What was the cause?
a. They wanted to see what would happen if they kept sailing west.
b. They sailed from Spain to America.
c. They went to Spain in 1519.
a. They wanted to see what would happen if they kept sailing west.