All other extant manuals date to the Middle Ages or later. The "combat stele" at Shaolin Monastery dates to 728 CE. The earliest text detailing Indian martial arts is the "Agni Purana" (c. 8th century), which contains several chapters giving descriptions and instructions on fighting techniques. It described how to improve a warrior's individual prowess and kill enemies using various methods in warfare whether they went to war in chariots, horses, elephants or on foot. Foot methods were subdivided into armed combat and unarmed combat. The former included the bow and arrow, the sword, spear, noose, armour, iron dart, club, battle axe, chakram and trident. The latter included wrestling, knee strikes, punching and kicking methods.