So, I just exercised my Google-fu, as I really didn’t know anything about Bi-discs, and now I know a lot more. Bi (or annulus – plural, annular) discs were neolithic ritual objects tied most closely to burials. Most were jade (aka, nephrite), but some were glass (depending on your status and how much you could afford to spend), and the amount of decoration and the ornateness of the decoration also corresponded to how much money had been spent on the object’s commission. Bi discs are thought to have to do with creation mythology and other god mythos, but seeing as how there isn’t a written record, we can’t tell for certain. And, there we go. That’s your knowledge dump for the day.