Comment by bcraven

I recommend everyone watch the documentary First Footprints[0], it is the most wondrous thing I have ever seen.

The simple answer is that some storied reference events that happened that long ago.[1]

[0] https://www.youtube.com/watch?v=1n6VJ5jq7zY

[1] https://www.science.org/content/article/aboriginal-tale-anci...