The document discusses the consequences and developments of early agriculture during prehistory, including a rise in population and food production, increased social complexity, sedentary lifestyles, the beginning of trade, the discovery of pottery, and the transition to the Metal Ages of copper, bronze, and iron between 4000 BC and the beginning of written history. Key sites mentioned include Stonehenge, dolmens and menhirs, Altamira cave paintings in Spain, and the Maltravieso cave in Cáceres known for a painting of a hand with four fingers.