There is a possibility that this was known much earlier than the 14th century. S...

There is a possibility that this was known much earlier than the 14th century. St. Brendan may have been speaking about the americas as early as 500 AD.

Wikipedia: https://en.wikipedia.org/wiki/Brendan Interesting read: https://www.amazon.com/Brendan-Voyage-Sailing-America-Explor...