What is Frenchman David belle most famous for?

David Belle is most famous for being one of the founders of parkour, a physical discipline that emphasizes efficient movement through urban environments by running, jumping, climbing, and vaulting. He developed his skills in the late 1980s and early 1990s, drawing inspiration from his training in gymnastics and Martial Arts. Belle gained international recognition through various films, advertisements, and viral videos showcasing parkour techniques. His influence has helped popularize parkour as both a sport and an art form worldwide.