Sixteenth-century mapmakers back in Spain mistakenly confused the names, so that in the end the port became San Juan and the whole island was called a rich port ; once on the maps, the names stuck.
The original name for the island has been lost to history.
mnli hypothesis: The original name for the island has been lost to history. premise: Sixteenth-century mapmakers back in Spain mistakenly confused the names, so that in the end the port became San Juan and the whole island was called a rich port ; once on the maps, the names stuck.