I don’t remember where, but I read speculation that the Tribe of Dan went to Ireland prior to the arrival of the Celts. The people who were replaced by the Celts were the Tuatha De Danann (The Peoples of the Goddess Danu). They were described as small and olive skinned.
There was sea travel trading network I’m sure.
Yes, and from there, they built tens of thousands of ox hide Currachs and migrated to N. America, which was then uninhabited and a quick easy hop across the N Atlantic, and they begat the American Indian race, who mostly destroyed themselves in an epic battle where a quarter of a million died, right on the back doorstep of Joseph Smith.
Any more questions?