in the second century a.d., it ruled an empire whose soldiers stood guard from the windy hills of hadrian'sall in scotland to the persian gulf, and whose merchants traveled as far afield as india and china-- the culmination and the unifying of the old cultures of the mediterranean world and western europe. from that day to this, rome would be the greatest single influence on the western cultural tradition. indeed, it could be said that rome is that tradition. it's not merely that rome gave the west the latin language, roman law, roman ideas on state craft and on society. it was rome which passed on to the west the artistic, philosophical, and spiritual legacy of ancient greece, which rome had conquered, looted, and then learned from. it was rome which would be the agency of transmission to the west of an obscure, near-eastern religious cult which became the dynamic, motive force in western society and spiritual life-- christianity. but rome also gave the west a practical legacy, a legacy which western people see every day of their lives, from washington square to trafalgar square. and that