Umbrae...
No worries...I;m in the same state...(hence the coffee/guernsey analogy...not good)...
Definitions like 'western' are difficult because they are temporary and new...A thousand years ago they were strong...two thousand years ago the ancestors of half the eastern europeans lived in China. Three thousand years ago, the Greeks had not emigrated into Greece.
Six thousand years ago, the ancestors of the Basques and Irish were the native peoples of Europe, and everyone else's Europeans still lived in Kazakhstan....
But I think, people used things like Bird flights, Rainfall, Spirit Guides, and the Entrails of animals all the way back to the First Migration....Rune and Ogam staves have been recorded in use since 100BCE, and presumably go a little farther back than that...
On the other hand, it is one of the old Methods...not much younger than I Ching, and over a thousand older that Tarot, and probably crystallomancy (not including water work...)
*finding himself miles off topic, and short of water...*