Assertion: martial art's system | /r/HasProperty | developed
Facets:
Source sentences:
text: Today, the systems of unarmed combat that were developed and practiced during the Muromachi period (1333–1573) are referred to collectively as Japanese old-style jujutsu (日本古流柔術, Nihon koryū jūjutsu).
text: Entire systems of fighting were developed based on the observations of their movement, fighting abilities and spirit.
text: In fact, they should have called it “maim and kill”, since that was the main goal in mind when this system of fighting was developed during the 18th and 19th centuries in the southern United States.