Alexander Falconbridge was a British surgeon who took part in four voyages in slave ships between 1780 and 1787.
His background might have influenced what he wrote about the Middle Passage because he witnessed the terrible conditions the slaves were living in and the misery they endured.
One such sentence would be this: "The compass was a vital piece of technology that allowed sailors and explorers of all kinds find their position in the world relative to the North Pole".
