One of the first chess sets produced in the Studio Anne Carlton series, this classic design depicts figures from this era.The Roman Empire was among the most powerful economic, cultural, political and military forces in the world of its time. It was the largest empire of the classical antiquity period, and one of the largest empires in world history. At its height under Trajan, it covered 5 million square kilometres and held sway over some 70 million people, at that time 21% of the world's entire population.