Question: Did Irish mythology inspire Washington Irving?, Answer:Yes, Description of Irish mythology: Pre-Christian Mythology of Ireland, Fact1: Washington Irving's most famous novel was The Legend of Sleepy Hollow., Fact2: The antagonist of the Legend of Sleepy Hollow, The Headless Horseman, was a man on horseback that was missing his head., Fact3: The Dullahan is a mythological creature in Irish mythology., Fact4: The Dullahan comes from the Irish word Gan Ceann, meaning "without a head"., Fact5: The Dullahan is depicted as a headless rider, usually on a black horse, who carries their own head in their arm.
Step1: Which Washington Irving novel was the most popular?, Step2: What are the features of the antagonist of #1?, Step3: What are the features of Dullahan from Irish mythology?, Step4: Does #2 considerably match #3?, Wikipedia page for step 1: Washington Irving, Wikipedia page for step 2: The Legend of Sleepy Hollow, Wikipedia page for step 3: Dullahan, Wikipedia page for step 4: , not_definitive_answer: False, incorrect_answer: False