Hive account@simon62, glad to receive all the information, thank you!

I am sure there was periods of abundance and also scarcity during those years, 200 "vikings" or "post-vikings" disappeared from Greenland in the 1400... No evidence of what really happened to them after that, I think they got sick of Greenland and the climate there and headed south somewhere and interbreed with natives (or maybe just got killed and captured as slaves or something, but I think there might have been some early mixing of cultures)...

I have been looking into the "hooked X" theory, pretty fascinating, you should check it out, it has to do with a specific runic symbol and theories about pre-columbian activity in the Americas...