These four ancient countries refer to the present four countries: Iraqi, Egyptian, Indian and China. Of the four ancient civilizations, only China is left.
These countries are the greatest civilizations in world history, because they have fertile disciples and rivers. Originally, there were five cradles of civilization in the world, namely ancient Babylon, ancient Egypt, ancient India, China and ancient Greece. Later, with the evolution of time, it became four ancient civilizations. The four ancient civilizations have their own birthplaces, namely, the two river basins (Mesopotamia), the Nile basin, the Indus-Ganges basin and the Yellow River-Yangtze basin.