36. Slimnastics Language Guide [c.1955] The 1960s saw a handful of new language initiatives. In this era, physical fitness educator (and novice linguist) Charles Bucher developed “Slimnastics,” a language in which speakers use their entire bodies to form a sort of “hieroglyphic.” Here, one can view the entire alphabet corresponding to gender, along with music to accompany training. Unfortunately, Bucher’s vision never quite caught on.