context: The history of the world here refers to the history of mankind living on the planet called earth, not the history of the earth as a planet. The history of human beings originated throughout the world at the earliest ages. Includes all archaeological and written documents from the earliest ages. The history of ancient proofs [1] begins with the invention of the writing system. The prehistoric era began in the old age. From there, civilization entered the era of neolithic and during the agrarian revolution (3-5 BC). In the post-Revolution era, the upbringing of plants and animals and the cultivation of systematic farming have been recognized as unique milestones of human civilization. However, livelihoods persist in many societies, especially in geographically isolated areas and where there is a lack of cultivable plant species. Due to food security and surplus production from agriculture, the groups gradually increased and gave rise to larger social institutions. The development of communication system also plays a significant role in this regard.
question: What is the name of the post-war era?