An arrowhead is point of an arrow, or a shape resembling such a point; as archaeological artifacts arrowheads are a subclass of projectile points.
Arrowheads are found all over the world. Archaeologically they are usually made of stone: primarily being flint, obsidian, or cherts; however in many excavations bone, wooden and metal arrowheads have been found.
In North America, Arrowheads are sometimes mistakenly attributed to the Historic Period American Indians, but are actually from North America's prehistoric ancestors; some arrowheads date back to over 15,000+ years old (Paleo-Clovis Culture).
In Scandinavia during the Viking age a wide range of arrowheads were used for a variety of tasks. A blunt arrowhead could be used for taking down small game and might commonly be made of wood. Barbed arrowheads were usually iron.
The traditional 'English' Longbow was first used in Wales. The English adopted the weapon due to its effectiveness. The arrowhead most commonly used with a longbow was around two inches long and made of iron, however many bowmen would have different weights of arrowhead to use for different targets and distances.
Arrowheads are attached to arrow shafts and may be "thrown", with by means of such as an Atl-Atl (similar to a spear thrower), or fired from a bow.
Finished flint arrowheads are highly detailed and well napped. 1 inch long on average.