There is a wealth of early Chinese literature dating from the Hundred Schools of Thought that occurred during the Eastern Zhou Dynasty (770–256 BC). The most important of these include the Classics of Confucianism, of Daoism, of Mohism, of Legalism, as well as works of military science and Chinese history. Note that, except for the books of poems and songs, most of this literature is philosophical and didactic; there is little in the way of fiction. However, these texts maintained their significance through both their ideas and their prose style.