Early anno domini dated coins as a collecting area are generally agreed to be those prior to 1501 in large part because of the pioneering book on the subject by Albert Frey, who is truly the father of the study. By this time many states and cities of northern Europe were dating at least their larger silver coins and especially goldguldens and in just a few more decades it was unusual for a European coin NOT to have a date. I intend to consider coins dated to roughly the 1530s as there are some medieval holdouts even until this time.