Claim: Noam Chomsky is only a historian.
Evidence: Avram Noam Chomsky -LRB- -LSB- æ ` vrɑːm _ ` noʊm_ˈtʃɒmski -RSB- ; born December 7 , 1928 -RRB- is an American linguist , philosopher , cognitive scientist , historian , social critic , and political activist.