ussher                  Cleaned and tidied data drawn from Archbishop
                        James Ussher's chronology of ancient history
                        known popularly as The Annals of the World
                        (1658).
usshfull                Expanded data drawn from "ussher" Archbishop
                        James Ussher's chronology of ancient history
                        known popularly as The Annals of the World
                        (1658).
usshraw                 Raw original data directly drawn with
                        fundamental cleaning from "Annals_djvu.txt"
                        Archbishop James Ussher's chronology of ancient
                        history known popularly as The Annals of the
                        World (1658).
