B-boying at its inception borrowed from other performance styles, as many elements of b-boying may be seen in other antecedent cultures prior to the 1970s. Concerning martial arts, b-boying looks very similar to the movement found in the Brazilian martial art capoeira which came about in the 1500s;^[20] however, b-boy pioneers Richard "Crazy Legs" Colon and Kenneth "Ken Swift" Gabbert, both of Rock Steady Crew, said they never witnessed capoeira when they were young; they cite James Brown and Kung-Fu films as influences instead.^[21][22] Many of b-boying's more acrobatic moves, such as the flare, show clear connections to gymnastics. An Arab street dancer performing acrobatic headspins was recorded by Thomas Edison in 1898.^[23] However, it was not until the 1970s that b-boying developed as a defined dance style.