 Similarly, the interaction between Indian Buddhist monks (particularly of the Southern Madhyamika School) and Chinese Confucian and Taoist monks from c200-c900AD produced the distinctive Ch'an Buddhism.Ch'an, like the Tibetan style, further diversified into various sects based upon the transmission style of certain teachers (one of the most well known being the 'rapid enlightenment' style of Linji Yixuan), as well as in response to particular political developments such as the An Lushan Rebellion and the Buddhist persecutions of Emperor Wuzong.In these ways, manual labour was introduced to a practice where monks originally survived on alms; layers of garments were added where originally a single thin robe sufficed; etc.