Beginning approximately 12,000 years ago, the Neolithic Revolution marked the transition from nomadic hunter-gatherer societies to settled agricultural communities. This shift occurred independently in multiple regions, including the Fertile Crescent, China, Mesoamerica, and sub-Saharan Africa, with different crops domesticated in each area — wheat and barley in the Near East, rice in southern China, maize in the Americas. While agriculture enabled larger, permanent settlements and population growth, archaeological evidence also indicates it brought reduced stature, increased infectious disease, and nutritional deficiencies compared to foraging populations.