Beth, I think you will find the answer to that in the Ameraucana History link by Dick Orr. To summarize, Wheaten and White bantams were recognized by the American Bantam Association in 1980. The other six bantam varieties were recognized by the ABA in the fall of 1983. All the current bantam and large varieties were recognized by the American Poultry Association in the fall of 1984. This the result of a bantam qualifying meet held at the Ohio National in the fall of 1983. The large fowl got in on the coattails of the bantams, as they never really qualified via the required meet.