- History is the science that collects, relates and interprets knowledge about humans from their origins to the present. It aims to explain past events by understanding causes and consequences.
- The earliest human ancestors lived in Africa around 7 million years ago. Early humans began making stone tools around 2 million years ago and modern humans spread worldwide by around 100,000 years ago.
- The development of farming and permanent settlements during the Neolithic Revolution beginning around 9000 BC led to the rise of early civilizations in places like Mesopotamia, the Indus Valley, Egypt, and others.