The Abrahamic religions are a set of monotheistic religions that revere the Biblical figure Abraham, the three largest of which are Judaism, Christianity, and Islam. The religions of this set share doctrinal, historical, and geographic overlap that contrasts them with Indian religions, Iranian religions, and East Asian religions. The term has been introduced in the 20th century and superseded the term Judeo-Christian tradition for the inclusion of Islam. However, the categorization has been criticized for oversimplification of different cultural and doctrinal nuances.