Ji (polearm)
The ji was a Chinese polearm, sometimes translated into English as spear or halberd, though they are conceptually different weapons. They were used in one form or another for over 3000 years, from at least as early as the Zhou dynasty, until the end of the Qing dynasty. They are still used for training in many Chinese martial arts.
History
The ji was initially a hybrid between a spear and a dagger-axe. It was a relatively common infantry weapon in Ancient China, and was also used by cavalry and charioteers.In the Song dynasty, several weapons were referred to as ji but developed from spears, not from ancient ji. One variety was called the qinglong ji, and had a spear tip with a crescent blade on one side. Another type was the fangtian ji, which had a spear tip with crescent blades on both sides. They had multiple means of attack: the side blade or blades, the spear tip, plus often a rear counterweight that could be used to strike the opponent. The way the side blades were fixed to the shaft differs, but usually there were empty spaces between the pole and the side blade. The wielder could strike with the shaft, pulling the weapon back to hook with a side blade; or, he could slap his opponent with the flat side of the blade to knock him off his horse.