When was the plaster cast invented?

The use of hardened or stiffened casts to aid the setting of bones has been in use as far back as ancient Greek times but the creation of the modern cast, eventually known as the plaster cast, can be traced to the innovations of a number of military surgeons beginning with Dominique Jean Larrey followed by Louis Seutin and then Antonius Mathijsen. The initial innovation of the cast began in 1812 with the use of bandages stiffened with lead acetate, camphorated alcohol and beaten egg whites in water. Antonius Mathijsen, however, was the first to use gypsum plaster or plaster of Paris casts to treat the injured in the 1950s with notes on its use published in 1952.