KIRK: Captain's log, stardate 4040.7. On the surface of planet four, system eight nine two, the landing party has won the confidence of what obviously is a group of runaway slaves. They dwell in caves not far from a large city, wear rags, live under primitive conditions. But they are creatures of a heavily industrialized twentieth-century type planet very much like Earth. An amazing example of Hodgkins's Law of Parallel Planet Development. But on this Earth, Rome never fell. A world ruled by emperors who can trace their line back two thousand years to their own Julius and Augustus Caesars.