Neolithic Revolution as irrigation and deforestation which allowed the production of surplus food. Other developments found very widely are the domestication of animals, pottery, polished stone tools, and rectangular houses. These developments, sometimes called the Neolithic package, provided the basis for centralized administrations and political structures, hierarchical ideologies, depersonalized systems of knowledge (e.g. writing), densely populated settlements, specialization and division of labour, more trade, the development of non-portable art and architecture, and property ownership. The earliest known civilization developed in Sumer in southern Mesopotamia (); its emergence also heralded the beginning of the Bronze Age. The relationship of the above-mentioned Neolithic characteristics
Inside the Neolithic Mind share in the ability to enter into altered states of consciousness, in which they experience entoptic phenomenon, which the authors discern as a three-stage process leading to visionary experiences. Arguing that such altered experiences have provided the background to religious beliefs and some artistic creativity throughout human history, they focus their attention on the Neolithic, or "New Stone Age" period, when across Europe, communities abandoned their nomadic hunter-gatherer lifestyles and settled to become sedentary agriculturalists. Adopting case studies from the opposite ends of Neolithic Europe, Lewis-Williams and Pearce discuss the archaeological evidence from both the Near East – including such