The Neolithic era was marked by changes in society. During the Neolithic era, people started to settle down. They developed agriculture and domesticated animals, both of which took a very long time. Because of these two things, people did not have to migrate as much any more. Villages could grow to much larger sizes than before. Over time, villages fought and spread their control over larger areas and some became civilisations. During this time, humankind also developed further intellectually, militarily and spiritually. 