There is, indeed, no other epoch in its history, so far as we know it, when a complete laying out could have been carried through.

On the other hand, it is not probable that the first town was a mile long and half a mile wide.

Possibly, as an acute German archaeologist has suggested, the small 'insulae' in the south of the town may indicate the line of an original wall and ditch which, like the first walls of Timgad, were overrun later by an expanding town.

Certainly, early graves found hereabouts show that this space lay once outside the inhabited area, and similar evidence has been noted both on the north of the town in the Simeonstrasse, and on the west near the Mosel Bridge.

If this be so, Augusta Treverorum may have at first covered only 120 or 130 acres; then, as the place spread beyond its original limits, its builders followed more or less closely the lines of the first streets, and, save near the Porta Nigra, continued the chess-board pattern as it was continued at Turin.
_Silchester_ (figs.