Or perhaps you are referring to tradecraft, markets, and culture, rather than technology.
This, I am fully on board with.
We know viking traders traveled as far East as Chicago. We know there was much European DNA bred into the Atlantic human population centuries before Lief Ericson or Christopher Columbus.
We know the legends of the Aztec which told of their "white god" expected to return across the sea.
We know that people managed to sail from India to Australia, and fully populate the Islands from Asia to Hawaii.
People who choose to brew up their own storms bitch loudest about the rain.
