Open English Wordnet
Adjectives
(a)historicalof or relating to the study of history“historical scholars”, “a historical perspective”
(a)diachronic, historicalused of the study of a phenomenon (especially language) as it changes through time“diachronic linguistics”
(s)historicalhaving once lived or existed or taken place in the real world as distinct from being legendary“the historical Jesus”, “doubt that a historical Camelot every existed”, “actual historical events”
(s)historic, historicalbelonging to the past; of what is important or famous in the past“historic victories”, “historical (or historic) times”, “a historical character”