To them must be added, fourthly, the important evidence which points to the use of a system closely akin to town-planning in early Rome itself.
_The Terremare_ (fig.

11).
(i) We begin in the Bronze Age, somewhere between 1400 and 800 B.C., amidst the so-called Terremare.

More than a hundred of these strange settlements have been examined by Pigorini, Chierici, and other competent Italians.

Most of them occur in a well-defined district between the Po and the Apennines, with Piacenza at its west end and Bologna at its east end.

Some have also been noted on the north bank of the Po near Mantua, both east and west of the Mincio, and two or three elsewhere in Italy.