I have a question about TKD patterns. They seem to come from several different sources and have several different sets of names, as TKD was created during the 1950s; some of them from shotokan karate, but some came from elsewhere. The geneology of TKD patterns makes karate look positively straightforward.
There's 3 different sets as far as I can see, the karate based ones (Pinans and Passai), the ITF based ones and the WTF ones. Then there are the local origin martial arts from which TKD originated;ssireum (sumo), subak and taekkyon and the chinese influence with gwonbeop.