It was created by the late Jose Caballero.The name of the art was derived from his middle name "Diaz" and his surname "Caballero". He once proclaimed that when you lift heavy objects, it is assisted by the count of three; "Uno Dos y Tres!”. This is indicative of the simplicity in which techniques are taught and executed within the art. The Tagalog word "orihinal" is translated "original".
In his early youth he used to go from barrio to barrio to watch Eskrima exhibitions during the fiesta celebrations. These demonstrations, mostly pre-arranged sparring called DeCadena, were more of a cultural presentation than a display of real fighting which he was doggedly searching for. From his observations of these Eskrima exhibitions, he modified moves with an emphasis on three striking levels: the eyes, lower arms (specifically elbows and hands), and knees. He was a fan of Western movies and often compared his style to the gunslinger "quick draw".As is the case with many of the Filipino styles, newcomers start by training with slow drills. As they advance in skill and ability, likewise will the speed in which they practice. This gradual approach helps the students to learn the movements correctly while applying them with increasing speed over time.
De Campo uses linear assaults and thrusts at punching range instead of angular strikes common in most close-quarters systems.