In ancient times, there were many names of countries. Here are some names that might be useful: 1 Babylon: Babylon was one of the most powerful civilizations in ancient Mesothamia. Its city ruins are located in the middle of present-day Iraq. Persia: Persia was a country on the ancient plateau of iran. Its empire included present-day iran, Iraq, Syria, and north Africa. 3 Athens: Athens was one of the most powerful cities in ancient Greece. Its political culture was outstanding. 4. Attika: Attika was a region of the ancient Indian subcontinent, the region of the Indian River basin today. Byzantium: Byzantium was a province of the ancient Roman Empire. The ruins of Byzantium were located in the center of present-day Turkey. 6 Han Dynasty: The Han Dynasty was an important period in Chinese history. Its rule included the north and west of China today. The Roman Empire was one of the most powerful empires in European history. Its rule included the European continent and North Africa. 8 Tang Empire: The Tang Dynasty was a dynasty in Chinese history that ruled over present-day China, Central Asia, and Southeast Asia. These are just some of the names that might be useful. You need to choose a suitable ancient country name according to the plot and setting of the novel.