What is the title of the first complete martial arts book written in 1790 AD?

The first complete martial arts book written in 1790 AD is "Mooyae Dobo Tongi." This work is significant as it represents one of the earliest comprehensive texts on martial arts in Korea, detailing various martial arts techniques, their applications, and historical context. The book is an essential reference for understanding the foundations of Korean martial arts and has had a considerable influence on training methods and martial arts pedagogy.

In contrast, the "Hwa Rang Oath" refers to a set of principles or vows associated with the Hwa Rang youth group from the historical Silla kingdom, while the "Tang Soo Do Encyclopedia" and "History of Martial Arts" are not specific historical texts attributed to that time period. Thus, "Mooyae Dobo Tongi" stands out as the correct answer, highlighting its historical importance in the study of martial arts literature.