Yeah. I can think of one ritual that's probably even older: burying the dead. However what interesting about this tradition is the degree of specificity that w

Yeah. I can think of one ritual that's probably even older: burying the dead. However what interesting about this tradition is the degree of specificity that was preserved with this ritual (e.g. stick of same type of wood, coated with fat, put in a small fire to break), none of which has any real practical purpose.