Chinese philosophy originates in the Spring and Autumn period and Warring States period, during a period known as the "Hundred Schools of Thought",[1] which was characterized by significant intellectual and cultural developments.[1] Although much of Chinese philosophy begun in the Warring States period (475–221 BCE), elements of Chinese philosophy have existed for several thousand years. Some can be found in the I Ching (the Book of Changes), an ancient compendium of divination, which dates back to at least 672 BCE.[2]