taekwondo1-2, Exercise 2: The manual and the word

Model answer:

Muye Dobo Tongji: commissioned in 1790 by King Jeongjo; published in four volumes in 1795.
Unarmed combat: volumes 1 to 3 are mainly polearms and swordsmanship; volume 4 covers unarmed combat (gwonbeop, "boxing"), blunt weapons (staff and flail) and equestrian skills. So unarmed combat is a part of the book, not its centre.

Earliest written source for "taekkyeon": the Jaemulbo, from the reign of King Jeongjo (1776-1800); the Subak article dates it to 1798. It glossed an old Chinese reference to unarmed contests as "like today's Taekkyon".

Discrepancy (any one): the Subak article refers to the "1790 martial arts manual Muyedobotongji", but the Muye Dobo Tongji article gives 1790 as the commission and 1795 as the publication. Or: the two articles give the Jaemulbo quotation in different forms (byeon vs "Subak and Gakryeok").

Sources: Wikipedia, Muye Dobo Tongji; Taekkyeon; Subak (martial art).