Pankration (pronounced /pæŋˈkrɑːtiɒn/ or /pæŋˈkreɪʃən/; from Ancient Greek: Παγκράτιον, Pagkration, IPA: [paŋˈkration]; Modern Greek: Παγκράτιο, IPA: [pa(ŋ)ˈɡratio]) is a combat sport introduced into the Greek Olympic Games in 648 BC and founded as a blend of boxing and wrestling. The term comes from the Ancient Greek παγκράτιον, literally meaning "all powers" from πᾶν (pan) "all" + κράτος (kratos) "strength" or "power". It is also used to describe the sport's contemporary variations. Some consider it as the first all-encompassing fighting system in human history. It is also arguable that pankration competitions in antiquity were the closest an athletic event has come to outright, no-rules, empty hand combat. Modern mixed martial arts competitions have come to feature many of the same methods that were used in pankration competitions in the ancient Greek world.[1]
Read more about Pankration on Wikipedia