Võ phục not necessarily adopted by all practitioners, as evidenced throughout 1973-1990 when many practitioners under a separate development of Vovinam, the "Viet Vo Dao Federation," wore black uniforms. By 1990, however, after further meetings between councils, indigo had been adopted by the majority of Vovinam practitioners in and outside of Vietnam. Deep blue/indigo (Vietnamese: Lam) is now the internationally accepted color of Vo Phuc for Vietnamese martial arts. The "võ phục" of Vovinam are very similar, if not nearly identical, to the "keikogi" of Japanese martial arts. Both top and bottom of the uniform are constructed in much the same way
Martial arts preserve a historical system from a specific era. They are rather contemporary regional sports that coexist with the modern forms of martial arts sports as they have developed since the 19th century, often including cross-fertilization between sports and folk styles; thus, the traditional Thai art of muay boran developed into the modern national sport of muay Thai, which in turn came to be practiced worldwide and contributed significantly to modern hybrid styles like kickboxing and mixed martial arts. Singlestick, an English martial art can be seen often utilized in morris dancing. Many European dances share elements of martial arts with