: That being said, I have no sources to quote. That is just what I call it. It
: is not Eastern mythology, so I assume it is considered Western. Islamic,
: Christian, and Judaic mythology are strange because they are not Eastern,
: but they really do not fit well with the other Western.
In older times in western Europe, the lands where these religions came from were considered eastern. That's why we still call them the "Middle East" today; the Near East was around Greece, the Middle East a bit further (Arabia, Persia, etc), and the Far East was China, Japan, etc.
Today, Western generally means European including what was once the Near East (e.g. Greek mythology is Western mythology) and those cultures of European descent, e.g. the modern countries of the Americas and Australia; but not indigenous cultures of those areas). As to Christianity, Islam, and Judaism being "Western", I'd say that only Christianity is deserving of that label, having been picked up by the Romans and made the official religion of most of Europe for quite a while, where it developed many layers far removed from it's middle-eastern roots. Eastern Orthodox Christianity may escape that umbrella, but Catholicism (which is the Christianity of most of the Spanish- and Portuguese-Speaking world, including most of the Americas) and Protestantism (some variant of which is the predominant Christianity of most of the English-speaking world, including the U.S., Canada, and Australia) are definitely Western in their heritage, as are of course the Christian denominations of various European cultures. Thus I think it's safe to say that the biggest chunk of Christendom is "Western".
