What is the difference between historic and historical?

historic – with historic meaning

The historic conference was held in 2004.

historic event

historical – refers to the past/ history

I like to read historical novels.

He is a member of the Historical Society.

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You can read more here: http://oald8.oxfordlearnersdictionaries.com/dictionary/historic

http://www.quickanddirtytips.com/education/grammar/historic-versus-historical

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