What do the Nile river and Ganges plain have in common?

Both the Nile River and the Ganges Plain are associated with extensive and historically important civilizations. The Nile River in Africa fostered the development of the ancient Egyptian civilization, known for its pharaohs, pyramids, and advances in mathematics, astronomy, and medicine. The Ganges Plain in Asia is home to the Indian subcontinent, which has been a cradle of civilization for thousands of years. It gave rise to the Indus Valley Civilization, one of the world's earliest civilizations, and later became the heart of various other empires, including the Maurya, Gupta, and Mughal empires. Both the Nile River and the Ganges Plain have rich agricultural lands and water resources that supported large populations and facilitated the growth of these ancient civilizations.