Who flew the first stunt plane?

The first stunt plane is often attributed to be flown by aviator and aviation pioneer Paul Mantz in the 1920s. He was known for his aerial acrobatics and contributed significantly to the development of aerobatic flying. However, the concept of stunt flying evolved over time with contributions from various pilots, making it difficult to pinpoint a single individual as the first. Early aviation shows and exhibitions featured a variety of pilots performing stunts in modified aircraft.