"Sedentary" and "nomadic" communities continued to interact considerably; they were not strictly divided among widely different cultural groups.
The concept of a cradle of civilization has a focus where the inhabitants came to build cities, to create writing systems, to experiment in techniques for making pottery and using metals, to domesticate animals, and to develop complex social structures involving class systems.
Charles Rollin's Ancient History (1734) has "Egypt that served at first as the cradle of the holy nation".
The phrase "cradle of civilization" plays a certain role in national mysticism.
In the absence of written documents, most aspects of the rise of early civilizations are contained in archaeological assessments that document the development of formal institutions and the material culture.
Uruk trade networks started to expand to other parts of Mesopotamia and as far as North Caucasus, and strong signs of governmental organization and social stratification began to emerge leading to the Early Dynastic Period (c. The Jemdet Nasr period, which is generally dated from 3100–2900 BC and succeeds the Uruk period, is known as one of the formative stages in the development of the cuneiform script.
It has been used in Eastern as well as Western cultures, for instance, in Hindu nationalism (In Search of the Cradle of Civilization 1995) and Taiwanese nationalism (Taiwan — The Cradle of Civilization 2002).
The terms also appear in esoteric pseudohistory, such as the Urantia Book, claiming the title for "the second Eden", or the pseudoarchaeology related to Megalithic Britain (Civilization One 2004, Ancient Britain: The Cradle of Civilization 1921).
The earliest signs of a process leading to sedentary culture can be seen in the Levant to as early as 12,000 BC, when the Natufian culture became sedentary; it evolved into an agricultural society by 10,000 BC.
The importance of water to safeguard an abundant and stable food supply, due to favourable conditions for hunting, fishing and gathering resources including cereals, provided an initial wide spectrum economy that triggered the creation of permanent villages.