TITLE: Etymologiarum sive Originum libri XX
DATE: Seventh century A.D.
AUTHOR: St. Isidore of Seville, 600 - 636 A.D.
DESCRIPTION: see the 3 attached (1).pdf files, a 146-page monograph (#2), (#3)
http://www.myoldmaps.com/early-medieval-monographs/206-the-albi-or-merovingian/205-isidore-of-seville-t-o/205-isidore-of-seville2.pdf
http://www.myoldmaps.com/early-medieval-monographs/206-the-albi-or-merovingian/205-isidore-of-seville-t-o/205-isidore-of-seville3.pdf