However this may be, it is pretty certain that the Cambridge on which Guthrum, in the year 872, marched from Repton was the "Borough" of Castle End. After holding, or, as one chronicler (Gaimar) would have us believe, only besieging it, for a whole year, the Danish host hastily made off to Wareham in Dorsetshire, to take part in that life and death struggle in the west which began with Alfred's great naval victory off Swanage, then drove him into hiding at Athelney, and ended with the Peace of Wedmore. By that treaty all England north of the Watling Street was ceded to the Danes as an under-kingdom, the "Dane-Law"; Guthrum, now a Christian and Alfred's godson, being set on the throne. Cambridge thus became undisputedly a Danish town. The district around was divided "with a rope" (i.e. by chain measure) amongst the invaders, and submitted as an organic whole, some half century later, to King Edward the Elder. It was probably at this time that the town began to extend itself into the East Anglian district to the east of the Cam. (Throughout its whole length the river, with its marshy banks, was the boundary between the old English kingdoms of Mercia and East Anglia; and traces of this are to be found in the distinctive customs of adjoining villages, on one side or the other of the stream, even to this day.) The "Saxon," or Romanesque, tower of St. Benet's Church, may well be of this date, erected by the English inhabitants dispossessed of their homes in the Borough by the conquering Danes who lorded it over them.
After its submission to Edward the Elder, Cambridge began its career as a County Town, giving its name, (as was the case in nearly all these new Edwardian counties,) to the surrounding district, which thus became known as Grantabrig-shire. The name covered only the southern part of the present county; for the Isle of Ely was reconstituted under the ancient jurisdiction of its great abbots and bishops. To this day, indeed, it has its own separate County Council, and even a separate motor-car lettering. The new political unit soon began to display no small local patriotism; for we read that in the fatal battle of Ringmere, fought on Ascension Day, 1010, between the fresh Danish invaders, who were then pouring over the land, and the united forces of East Anglia under the hero Ulfcytel, "soon fled the East English. There stood Grantabryg-shire fast only."
The Backs, Clare College Gate.
The victorious Danes, naturally, proceeded to wreak special vengeance on such obstinate foes. The county was ravaged with a ferocity even beyond the usual Danish harryings, and Cambridge itself was sacked and burnt. When it arose from its ashes, in the quieter days of the Danish Canute, the first "King of England," (his native predecessors having been Kings "of the English,") it was organised, Danish fashion, into ten Wards, each with its own "Lawman." In the reign of Edward the Confessor, it had, as we have seen, 400 dwelling-houses (masurae), not urban cottages closely packed in rows, but mostly tenements of the farmhouse type, each with its farmyard, the abodes of the husbandmen who owned and tilled the Common Fields of the town.
This number of houses shows Cambridge to have been at this time an important place, equal in population to a whole average "Hundred," with its ten villages; and as such we find it counted for legal purposes under the Norman and Plantagenet dynasties. But its Common Fields were by no means proportionately extensive,[3] so that many of the inhabitants must already have depended upon trade for their living.
If Cambridge fared ill at the hands of the Danes, it fared little better at those of the Normans. William the Conqueror made the place his headquarters in his operations against Hereward's "Camp of Refuge" at Ely. This resulted in the ruin of fifty-three out of the 400 houses, besides twenty-seven more pulled down to make room for his new Castle, which with its outworks and huge central keep occupied the greater part of the old Roman site to the west of the Bridge. The loss of these eighty houses probably brought down the population to little over 2,000 souls. Even with this reduction, however, the town might still claim to rank in the first class of English cities at the time; and this is shown by the growth of a Jewry within its walls, in the area bounded by St. John's College, Trinity College, and Bridge Street. For the Jews, (who first came into England as camp-followers of the Norman invaders,) naturally struck for the wealthier towns in which to form their settlement. As the place grew in importance Religious Houses began rapidly to spring up in and around it; the first being the great Augustinian Abbey of Barnwell, founded by Picot, the Sheriff of Cambridge under William the Conqueror.
The next generation saw Augustinian Canons settled in the town itself, at the Hospital (now the College) of St. John; and Benedictine nuns at the Priory of St. Radegund just beyond the King's Ditch, where their conventual church is still used as the Chapel of Jesus College. A century later, and friars of all the Orders came flocking into Cambridge; the Grey Franciscans, the Black Dominicans, the White Carmelites, the Austin Friars, the Friars of the Sack, the Friars of Bethlehem. The sites occupied by the first three of these names are to-day represented by the Colleges of Sidney, Emmanuel, and Queens'. Friars always made for the chief centres of life, and by the thirteenth century Cambridge had become emphatically such, by the rise of that institution destined to give it a perennial fame, the University.
How this rise of the University came about is an as yet unsolved problem in history. As in the case of Oxford, the great name of Alfred was invoked, by unscrupulous mediæval fabricators, as concerned in its foundation. And it is possible that there may be really traceable some distant connection with that great saint and hero. For Alfred actually did found amidst the ruins of Ely, after its sack by the Danes, a small College of priests, which lived on to be the nucleus of the restored Abbey in the days of his grandson Edgar the Peaceful. And it is also historical fact that this restored Abbey was specially renowned for the famous school attached to it—so famous as to count amongst its scholars more than one future monarch. Furthermore we know that the Ely monks taught in Cambridge also, and this may well have been the first germ of the University.