adjective
1
BAD : She likes reading historic novels.
GOOD : She likes reading historical novels.
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historic = (1) very important in history: 'a historic voyage', 'a historic decision' (2) having a long history: 'a historic tradition', 'a historic building'
historical = (1) about or based upon people who actually lived or events that actually happened: 'Historical records suggest that the prince was fully aware of the murders.' (2) connected with or found in history: 'a diary of great historical interest', 'a historical document', 'for historical reasons'.
2
BAD : He likes reading historic books.
GOOD : He likes reading history books.
BAD : We spent the afternoon at the historic museum.
GOOD : We spent the afternoon at the history museum.
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a history book/lesson/museum etc = a book/lesson/museum etc that deals with the subject of history: 'Our history teacher next term is Mr Young.'