Zen Buddhism was founded by the South Indian Tamil Buddhist sage Bodhidharma. The word Zen is from the Japanese pronunciation of the Chinese word Chán, which in turn is derived from the Sanskrit word dhyana, which can be approximately translated as "meditation" or "meditative state."
Zen emphasizes experiential wisdom in the attainment of enlightenment. As such, it de-emphasizes theoretical knowledge in favor of direct self-realization through meditation and dharma practice. The teachings of Zen include various sources of Mahayana thought, including the Prajñaparamita literature, Madhyamaka, Yogacara and the Tathagatagarbha Sutras.
The emergence of Zen as a distinct school of Buddhism was first documented in China in the 7th century CE. From China, Zen spread south to Vietnam, and east to Korea and Japan. As a matter of tradition, the establishment of Zen is credited to the South Indian Pallava prince-turned-monk Bodhidharma, who came to China during the rise of Tamil Buddhism in Tamilakam to teach a "special transmission outside scriptures, not founded on words or letters."