Prince Sado also originated the term Sib Pal Gi (십팔기, 十八技, “Eighteen [Fighting] Methods” or possibly "Eighteen [Warrior's] Tools” if using 十八器), shortened from Bonjo Muye Sib Pal Ban (본조무예십팔반, 本條武藝十八般, "A Treatise on the 18 Martial Categories of the Yi Dynasty").
This mirrors the Chinese concept of the "Eighteen Arms of Wushu" (十八般兵器) to identify the Korean collection of weapons depicted in the Mu Ye Sin Bo (note that 十八般兵器 is pronounced Sip Pal Ban Byeong Gi in Korean, 십팔반병기, where the words Ban Byeong are left out to render Prince Sado's term, and these omitted words roughly translate as "martial methods" making them essentially superfluous when taken in context).
The earlier manual of 1610, Muyejebo (Martial Arts Illustrations) had as its background the Imjin War (1592–1598), which revealed severe shortcomings in the Korean national army causing King Seonjo (1567–1608) to order reforms based on the successful training model of the Chinese General Qi Jiguang (1527–1587).
Both the Muyejebo and Muyesinbo formed the basis for the later Muyedobotongji ("Comprehensive Illustrated Manual of Martial Arts") of 1795, which added 4 already depicted disciplines only as executed on horseback (namely: flag spear, twin sabres, moon-knife, and flail) in addition to horsemanship itself as well as a polo-like game, bringing the total number of systems to 24.
The term Sip Pal Gi in modern Korean martial arts has come to identify three separate but related activities.