Kris as well as the emblem of the Cotabato Province. Kris depicted in several emblems as a symbol: Kris The kris (ngoko Javanese: ; krama inggil Javanese: ; ngoko: keris; krama; "dhuwung"; krama inggil: "wangkingan", lit. "to slice"; Jawi: کريس, Thai: กริช "krit", Minangkabau: "karih", Tagalog: "kalis"; Bugis and Makassarese: "sele") is an asymmetrical dagger with distinctive blade-patterning achieved through alternating laminations of iron and nickelous iron ("pamor"). Kris is most strongly associated with the culture of Indonesia. The kris is famous for its distinctive wavy blade, although many have straight blades as well. Kris have been produced in many regions
Kris is generally traced through the study of carvings and bas-relief panels found in Southeast Asia. It is believed that the earliest kris prototype can be traced to Dongson bronze culture in Vietnam circa 300 BC that spread to other parts of Southeast Asia. Another theory is that the kris was based on daggers from India. Some of the most famous renderings of a kris appear on the bas-reliefs of Borobudur (825) and Prambanan temple (850). However, Raffles' (1817) study of the Candi Sukuh states that the kris recognized today came into existence around 1361 AD in the kingdom of Majapahit,