Meaning of Panahon ng gitnang bato?

"Panahon ng Gitnang Bato," or the Middle Stone Age, refers to a prehistoric period characterized by the development of more advanced stone tools and the emergence of early human behaviors. This era, which follows the Lower Paleolithic and precedes the Upper Paleolithic, saw significant advancements in technology and culture, including the use of microliths and the beginnings of art and symbolic thinking. It marks a critical phase in human evolution, reflecting adaptations to changing environments and social structures.