 Complete the following phrase:  The grid plan, or Hippodamian plan, was also utilized by the Ancient Romans for their fortified military encampments, or castra, many of which evolved into towns and cities; Pompeii is the best-preserved example of Roman urban planning using the gridiron system. In France, England, and Wales, castra evolved into bastides, agricultural communities under a centralized monarchy. This example was followed on the European continent in cities such as New Brandenburg in Germany, which the Teutonic Knights founded in 1248, and in the many towns planned and built in the 14th century in the Florentine Republic. The gridiron idea spread with the Renaissance, although in many cities, for instance London following the 