There is hardly a spot of ground on the earth's surface of which the site has been so much disputed as the Itius Portus. The place itself is one of no importance, but it has a kind of fictitious value as the spot from which in B.C. 55, and again in the following year, Caesar set out to the conquest of Britain. To determine the site of the Itius Portus would be so far to fix the spot where the great captain first set foot on our island, Calais and Boulogne (Gesoriacum, afterwards Bononia), and every bay between these points, have been at various times upheld by different geographers as the scene of Caesar's embarkation; but the best authorities are now agreed that the actual spot was the village of Wissant or Duissant, which lies about 3½ miles N.E. of Cape Grisnez (Itium promontorium). D'Anville and Long both strongly advocate the view which seems to be now very generally accepted. An admirable discussion of the whole question will be found in George Long's edition of Cæsar, Lond., 1853, pp. 248-257.

ITURBIDE or Yturbide, Augustin, the famous Mexican usurper. See Mexico.