However, Tang and Chen also created confusion. Tang affirmed Chen Wangting as the creator of the original, old frame forms, and he even found mention of three “forgotten" old frame forms recorded in a Chen Family Manual. Despite this, he had yet to grasp the nature of the paradigm shift within the Chen family that caused these old forms to be left behind while preserving Chen Wangting's teachings through the practice of only two old, perhaps updated, forms, the Thirteen Postures and Cannon Fist. Moreover, Tang observed differences between Chen Ziming's Yilu and the Yilu Tang had learned from Chen Fake and with his formative information, assumed these differences to be of archaic origin. Since Ziming called his art "new frame,” and Chen Fake did not, it must have been "old frame." Tang further concluded that the "new frame" must have been created by Chen Youben, Ziming's progenitor. Chen Fake's progenitor, Chen Changxing, must have practiced "old frame" and taught it to Yang Luchan. Regardless of the veracity of his assumptions or reasoning, Tang divided the Chen Family martial art and created three frames out of two. Since then, compelling evidence has led to more complete theories, but confusion persists.