This updated History and Philosophy of Andragogy is mainly limited [with a few exceptions] to a chronological history and the accompanying philosophy of andragogy, in line with when the English language documents were published and personal descriptions of events were recorded. Some of these documents, however, present aspects of the events and ideas which recount the years and contexts prior to the time in which they appeared in published form. To date, nearly 400 documents have been discovered, but space limitations in this paper allowed the inclusion of only a fraction of that number. Each of 14 time periods are articulated with selected works.