Smittywerbenjagerman t1_j4x0lmp wrote
Reply to comment by Knull_Gorr in TIL that only about 4% of the Earth's surface has two points on opposite sides of the world that are both on land by A_1337_Canadian
Actually, for the Polynesian islands they didn't have sextants. But they got by just fine. Wikipedia has a whole page on it.
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