This form is a traditional taekwondo form, meaning it pre-dates contemporary forms (such as those used by the ITF, ATA, and WTF). In other words, this is a form used during the 1950s within the Nine Kwans that eventually came together to form taekwondo. * Older forms such as this one were often based on forms from other martial arts. * The details and names of these older forms tend to vary more widely from school to school as well. The version shown here is just one version; the reader should recognize that there will be variations among schools.