Sambo
What martial art originated in Russia in the 20th century?
Wrestling
Wrestling Sikaran Takeda Ryu Nakamura Ha Vale tudo Randai
Wrestling-Sambo Sikaran-History Takeda_Ryu_Nakamura_Ha-Abstract Vale_tudo-Abstract Randai-Abstract
Sambo is a martial art that originated in the Soviet Union (specifically Russia) in the 20th century. It is an acronym for "self-defence without weapons" in Russian and had its origins in the Soviet armed forces. Its influences are varied, with techniques borrowed from sports ranging from the two international wrestling styles of Greco-Roman and freestyle to judo, jujitsu, European styles of folk wrestling, and even fencing. The rules for sport sambo are similar to those in competitive judo, with a variety of leg locks and defense holds from the various national wrestling styles in the Soviet Union, while not allowing chokeholds.
Sikaran is a simple but intense martial art game that originated from the town of Baras in the province of Rizal. According to the forefathers of Baras, it had been practiced long before the Spaniards came to the Philippines in the 16th century. It is noted that like most Filipino martial arts, Sikaran has no written history as most Filipinos from the lower classes during Spanish colonial times were barely literate (free public education was only introduced during the American era) and it was passed orally from generation to generation. Like many Filipino martial arts styles, it has been endangered as it does not have as many practitioners as the more mainstream martial arts. Like Modern Arnis, in the mid-20th century, it had to adapt certain structural aspects of the more well known art of Karate like the belting system, choreographed forms or Katas and uniforms to make it more appealing other Filipinos and be more accepted internationally. 
Takeda Ryu Nakamura Ha (literally, "the Nakamura descendant of the Takeda school") is a gendai (modern) martial art developed by Nakamura Hisashi in the mid to late 20th century.__TOC__ 
Vale tudo (; ) are full-contact unarmed combat events, with a limited number of rules, that became popular in Brazil during the 20th century. Vale Tudo has been considered a combat sport by some observers. Vale Tudo uses techniques from many martial art styles, making it similar to modern mixed martial arts. 
Randai is a folk theater tradition of the Minangkabau ethnic group which incorporates music, singing, dance, drama and the "silat" martial art. "Randai" is usually performed for traditional ceremonies and festivals, and complex stories may span a number of nights. It is performed as a theatre-in-the-round to achieve an equality and unity between audience members and the performers. "Randai" performances are a synthesis of alternating martial arts dances, songs, and acted scenes. Stories are delivered by both the acting and the singing and are mostly based upon Minangkabau legends and folktales. "Randai" originated early in the 20th century out of fusion of local martial arts, story-telling and other performance traditions. Men originally played both the male and female characters in the story, but since the 1960s women have also participated. 