The Paleolithic period, also known as the Old Stone Age, is the earliest phase of human history that lasted from about 2.6 million years ago to around 10,000 BCE. This era is characterized by the development of early human tools made primarily of stone, the emergence of hunter-gatherer societies, and the gradual evolution of hominins into anatomically modern humans. The Paleolithic is crucial for understanding the cultural and technological foundations that shaped human societies long before agriculture began.