[Illustration: 749. Plan of Strasburg Cathedral. Scale 100 ft. to 1 in.]
It is not known when the nave was commenced, but probably in the early half of the 13th century, and it seems to have been finished about the year 1275, a date which, if authentic, is in itself quite sufficient to settle the controversy as to whether any part of Cologne is of an earlier age, everything we see in Strasburg being of an older style than anything in that church.
[Illustration: 750. West Front of Cathedral at Strasburg.]
Be this as it may, the details are pure and beautiful, and the design of singular boldness. The central aisle is 55 ft. wide from centre to centre of the piers, and the side aisles 33 ft. wide, while the corresponding dimensions at Cologne are only 49 ft. and 25 ft. respectively. Notwithstanding this, the vault at Strasburg is only 101 ft. in height against 155 ft. at Cologne. The consequence is, that measured from centre to centre the central aisle at Cologne is more than three times as high as it is wide, while at Strasburg it is less than twice. The whole width of the more northern example is practically equal to the height—at Strasburg it is one-fifth less; but the one having only three aisles, while the other has five, makes all these discrepancies still more apparent. Had the architect at Cologne, instead of introducing an external aisle, only increased the dimensions of Strasburg by one-fifth, retaining all its proportions, he would both externally and internally have produced the noblest building of the Middle Ages. As it is, the smaller nave of Strasburg is infinitely superior in proportion and apparent dimensions to that of the larger building.
This comparative lowness of the nave at Strasburg is greatly in its favour, as the length, which is only 250 ft., is made the most of, and the shortness of the cathedral is not perceived.
It does not appear that Erwin von Steinbach had anything to do with this part of the structure, beyond repairing the vault when damaged by fire in 1298, at which time he also introduced some new features of no great importance, but sufficient in some degree to confuse the chronology. What he really did, was to commence the western façade, of which he laid the foundation in 1277, and superintended the erection till his death, 41 years afterwards, when he was succeeded by his sons, who carried it up to the platform in 1365.