Definition of history                                plural  histories                                                                   1                                        : tale , story                                                              2  a                                        : a chronological  record of significant events (such as those affecting a nation or  institution) often including an explanation of their causes                        a history  of Japan                                       b                                        : a treatise  presenting systematically related natural phenomena (as of geography, animals, or plants)                       an illustrated history  of North American birds                                       c                                        : an account of a patient's medical background                       reviewing her medical history                                       d                                   ...