the microlith blade first appeared in the neolithic period
Microlith Laminar microliths date from at least the Gravettian culture or possibly the start of the Upper Paleolithic era, and they are found all through the Mesolithic and Neolithic eras. "Noailles" burins and micro-gravettes (See § Micro points, below.) indicate that the production of microliths had already started in the Gravettian culture.[1] This style of flint working flourished during the Magdalenian period and persisted in numerous Epipaleolithic traditions all around the Mediterranean basin. These microliths are slightly larger than the geometric microliths that followed and were made from the flakes of flint obtained ad hoc from a small nucleus or from a depleted nucleus of flint. They were produced either by percussion or by the application of a variable pressure (although pressure is the best option, this method of producing microliths is complicated and was not the most commonly used technique).[2]
Stone Age The Neolithic, or New Stone Age, was approximately characterized by the adoption of agriculture. The shift from food gathering to food producing, in itself one of the most revolutionary changes in human history, was accompanied by the so-called Neolithic Revolution: the development of pottery, polished stone tools, and construction of more complex, larger settlements such as Göbekli Tepe and Çatal Hüyük. Some of these features began in certain localities even earlier, in the transitional Mesolithic. The first Neolithic cultures started around 7000 BCE in the fertile crescent and spread concentrically to other areas of the world; however, the Near East was probably not the only nucleus of agriculture, the cultivation of maize in Meso-America and of rice in the Far East being others.