erected during the Gallic war, B.C. 387 (Livy, vi. 5). "The same day
is a festival of Mars, whom the Capenian Gate beholds, outside the
walls, situated close to the covered way" (Ovid, "Fasti," vi. 191).
"They paved with square stones the road from the Capenian Gate to the
Temple of Mars," A.U.C. 456 (Livy, x. 23). Repaired A.U.C. 563
(_Ibid._, xxxviii. 28). "The Curule Ædiles completed the paving of the
road from the Temple of Mars to Bovillæ," A.U.C. 459 (_Ibid._, xi.
47). Mr. Parker found some remains of this temple in excavating at the
back of the church. From here the Roman knights used to ride to the
Temple of Castor in the Forum, on the anniversary of the battle of
Lake Regillus (Dionysius, xi. 13).
_Nearly opposite is the_ CHURCH OF S. SISTO, belonging to the Irish
Dominican friars of S. Clement, on the site of the