Experimental Archaeology may have proved that flakes, blades, miniature blades and other artefacts produced from either chips or fragments of stone can be used for various tasks. However, only those of the above items whose sides and tips have been refined, are officially cosidered as tools. Most often the working procedure defines the form of the tool, which is a decisive factor for its typological analysis. The establishment of types became the main objective of specialists during the first half of the 20th century. The classification of types in a list depending on time and place, made a chronological and cultural approach possible which remains valid till today in the world of Prehistory.
