Please be more explicit about how the raven represents knowledge here. Right now you just assert that everything can be explained by these two uses of the symbol, but we're left to figure out how.

This is significantly after the highly-voted accepted answer, which points to an award given by the Greeks. For questions about the first X, please do not post a new answer if your X fails to beat the current best. There is another answer with 14-th century European awards, which your award also comes after.