Archaeologists are always trying to understand how prehistoric humans lived. One way they do this is by recreating past peoples' daily activities using the artifacts left behind in the archaeological record. This type of archaeology is known as experimental archaeology. One activity that archaeologists have replicated is the process of making stone tools or flintknapping. Flintknapping is the process of removing flakes from a stone core in order to shape the core into a tool or make flakes for use as tools themselves. The toolmaker strikes the stone intentionally to get the desired shape, size, and sharpness. The first stone tools were made by hammering, or simply by striking one stone with either another stone or a tool made from antler or bone. Later tools, like arrow points, were made by using a technique known as pressure flaking. In this process, humans applied pressure against the flake rather than striking to remove it. Pressure flaking is much more accurate than hammering. After the general shape of the tool is established, it can be further refined, polished, and sharpened over time. Archaeologists have learned about flintknapping by studying the many examples they have found of flakes and cores that were discarded during the process of making stone tools.