[Footnote 12: See Constantine de Thematibus, in Banduri,
tom. i. p. 1 - 30. It is used by Maurice (Strata gem. l. ii.
c. 2) for a legion, from whence the name was easily
transferred to its post or province, (Ducange, Gloss. Graec.
tom. i. p. 487-488.) Some etymologies are attempted for the
Opiscian, Optimatian, Thracesian, themes.]