Spring and Autumn Annals

The ''Annals'' records main events that occurred in Lu during each year, such as the accessions, marriages, deaths, and funerals of rulers, battles fought, sacrificial rituals observed, celestial phenomena considered ritually important, and natural disasters. The entries are tersely written, averaging only 10 characters per entry, and contain no elaboration on events or recording of speeches.
During the Warring States period (475 - 221 BCE), a number of commentaries to the ''Annals'' were created that attempted to elaborate on or find deeper meaning in the brief entries in the ''Annals''. The ''Zuo Zhuan'', the best known of these commentaries, became a classic in its own right, and is the source of more Chinese sayings and idioms than any other classical work. Provided by Wikipedia