Diffusion Part VIII
In the past I have examined the usual arguments for contact between the Old and New World pre- Columbus. What I have concluded is that at best with the exception of the Norse (c. 1000 C.E.), the evidence is both very poor and at best indicates sporadic and intermittent contact between the Old and New World and further such contact had minimal influence on the development of New World civilization.1
Here I will discuss briefly one of the seminal problems about arguing for sustained contact between the Old and New World pre-Columbus. The lack of similar diseases.2