If we could ask a Viking if Adam was the first man he wouldn't know him from... well, Adam. For the Vikings (Norse) Odin was the god of gods.
Same for a Polynesian: Maui is the god of gods. He hauled all of the islands up from the sea so that the people (Hawaiian, Samoan, Tahitian, Maori, Marquesan) could build civilization. Polynesia was born from the sea, fed by the sea, and gained its power from the sea. They didn't know Adam.. from Adam.
"One resists the invasion of armies; one does not resist the invasion of ideas" Victor Hugo