Based on streetfighting techniques he developed around 1820 "L'art de la savate".  He banned certain street-fighting manners and developed a regulated system for self-defense and competition. Due to his efforts the new sport got even eligible for members of the French upper class who consequently attended his Savate gym.  Casseux elaborated the first training system for Savate and his gym (or "salle") was the first official Savate dojo at all.
- "Savate". Retrieved 2011-08-26. "The first person to make an attempt to systematise savate was Michel Casseux (aka) Pisseux"
- "Savate". Retrieved 2011-08-26. "The very first person who attempted to make a system out of savate was Michel Casseux, who opened the first training establishment for it."
- "Savate". Retrieved 2011-08-26. "Two men were key in taking Savate out of the streets and into the modern sport world, Michel Casseux and Charles Lecour"
- "Savate". Retrieved 2011-08-26. "The creation of Savate is attributed in part to Michael Casseux"
- "Savate". Retrieved 2011-08-26. "1820 :Michel Casseux invente la Savate :combat de rue dont les coups sont donnés avec la chaussure et les mains ouvertes"
- "La Savate-boxe française, exception culturelle française!". Retrieved 2011-08-26. "En 1825 le maître d'armes Michel Casseux est le premier à enseigner l'art de la savate : l'escrime des pieds."
- "Historique Savate baton defense". Retrieved 2011-08-26. "Michel CASSEUX... est connu comme le premier Français à avoir recensé et organisé les différentes manières de se battre... dans les dans un traité qu'il appela "l'Art de la Savate""
- "Savate boxe française". Retrieved 2011-08-26. "D'abord pratiquée essentiellement dans la rue, c'est Michel Casseux qui a décidé de codifier ce sport"
- "La Savate". Retrieved 2011-08-26. "La méthodologie de la Savate s'est développée sous l'influence de Michel Casseux"
- "Savate offers kickboxing with soles". Retrieved 2011-08-26. "Casseux defined and categorized these fighting techniques and then taught them to the rich and other members of high society, thus popularizing the art"
- "Savate: From Street Fighting to Modern Sport". Retrieved 2011-08-26. "Casseux worked on defining the techniques in street fighting and promoting them into a new version of chausson and savate for his rich students."
- "A look at the European Martial Art of Savate by Peter Lockhart". Retrieved 2011-08-26. "he instructed many noblemen and famous students in his "salle" or gym."
- "History of Savate". Retrieved 2014-01-29. "Whilst Savate was originally regarded as a method of street-fighting, as time went on it gradually started to become systemized. The very first 'official' Savate training establishment 'Salle' was opened by Michel Casseux, aka Pisseux"
- "Savate". Retrieved 2014-01-29. "Charles Lecour, a one time pupil of Michel Casseux, assimilated the French kicking methods and combined them with English boxing to create la boxe francais"