Question: Is Edgar Allan Poe obscure in the world of horror fiction?, Answer:No, Description of Horror fiction: genre of fiction, Fact1: Edgar Allan Poe's writing has endured for over 150 years. , Fact2: Edgar Allan Poe's horror writing has been included in classroom curriculum for decades.  
Step1: How long have Edgar Allan Poe's writings remained in common use?, Step2: How long has his work in horror writing been used in classroom curricula?, Step3: Is #1 or #2 less than a decade?, Wikipedia page for step 1: Edgar Allan Poe, Wikipedia page for step 2: Edgar Allan Poe, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False