Continents: yes. However, there are political and social borders too. Central America and Latin America are good examples. 

Karl Wolz
Sent from my electronic umbilicus

> On Sep 30, 2015, at 2:34 PM, Dave Mcneely <mcneely4@COX.NET> wrote:
> 
> What countries are in what continent is a matter of geography, not whether people have an affinity to the other countries in the same continent or not.