This site was the original Cambridge, and may even have been called by that very name in its earliest form. For it is hard not to identify the Roman settlement (which the spade shows to have existed here) with the "Camboritum," which from the "Itinerary of Antoninus" (an official road book, probably of the third century A.D.) must have been somewhere in this immediate neighbourhood. And the word Camboritum is plausibly derived from the British _Cam Rhydd_ "the ford of the Cam." Cam (which, being interpreted, signifies crooked) may well have been the British name for a stream with so tortuous a course. But, if so, it was not continuously used, so far as records can tell us. The Roman Camboritum doubtless shared the almost universal destruction of Roman stations which marked the English conquest of Britain; and the site is described as still "a waste chester" two centuries later, when the monks of Ely sought amid the ruins for a stone coffin in which to entomb their foundress, St. Ethelreda. By this time the older name both of the town and of the river seems to have been forgotten. The latter was called, by the English, the Granta, and the former was accordingly known only as Granta-ceaster--the chester, or ruined Roman city, upon the Granta. (It should be noted that the village now called Grantchester was, till comparatively recent days, known as Grant-set.) Yet another century, and we find, in the days of King Egbert, the grandfather of Alfred and the first King acknowledged by the whole English nation, that a bridge had been built (or rebuilt) over the old ford; and therewith the old site of Camboritum had been reoccupied under the new name of Granta-bridge, by which it is known throughout mediaeval history. We do not meet with "Cambridge" in literature till the fourteenth century, nor with "Cam" till almost the date of "Camus, reverend sire," in Milton's Lycidas.