I believe the briar was first introduced into pipe smoking around 1850 in St. Claude, France. There was a legend that around a half-century earlier, Napoleon broke his favorite meerschaum, and a local pipe maker grabbed a chunk of briar and carved a pipe for the Emperor, but I believe this is a rather apocryphal tale. There were, of course, pipes made of different sorts of wood for centuries. Sir Walter Raleigh was smoking a pipe on his way to the place of execution, a pipe which is still on display at the Tower Museum, I believe. It wasn't briar, but it was some other sort of wood. King James hated tobacco, and this was Sir Walter's way of thumbing his nose at the king.