Stephen King's fictional evil clown, 'Pennywise', terrorizing the town of Derry, takes inspiration from real-life events.
Coulrophobia, the fear of clowns, affects around 50% of adults, with varying degrees of apprehension around clowns.
If the clown is a demonic supernatural entity that brutally slaughters children, creates carnage in its wake, and is named 'Pennywise', then it is safe to assume that the percentage would be much higher.
Stephen King created this fictional, evil jester in his 1986 novel IT, which has been the subject of nightmares for children and adults alike.
'Pennywise' is Stephen King's creative imagination, inspired by many real-life events and people.
Author's summary: Stephen King's 'Pennywise' has real-life inspiration.