I think the culture in each locality may be different or in some similar local, there may be a mixture of human nature because there has been contact with the outside world are different ethnic groups, different religious beliefs.
I think the local culture may be different in some localities may be similar or the same blend, because by its very nature, humans have contact with the outside world, different religions, different ethnic groups.
I think the culture in each local may be different or in some areas may be similar to blend together, because naturally human contact with the outside world of different ethnic groups of other religions.