This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
The comparative study of religion is usually dated as a formal academic field to the 1870s, when the philologist Friedrich Max Muller argued for what he called a science of religion, studying traditions side by side using the same methods rather than treating one as the measure the others were judged against. University chairs and departments organized around that idea followed over the next several decades, spreading from Europe outward through the twentieth century.
That founding moment has since drawn serious criticism from within the field itself. The historian of religion Tomoko Masuzawa, in The Invention of World Religions, published in 2005, argued that the supposedly neutral category of a world religion was built largely out of nineteenth century European, and specifically Protestant, assumptions about what counted as a proper religion, quietly ranking traditions that fit that template above ones that did not. Much of the discipline's more recent work has gone into examining, and where needed correcting, exactly that kind of inherited bias in its own categories.
That self examination is now treated as ordinary practice within the field rather than as a fringe critique, and a modern comparative study is expected to state its own categories explicitly and defend them, rather than presenting a Christian shaped framework of belief, scripture and clergy as though it were a neutral, universal starting point every tradition could simply be measured against.