History is one of the few subjects I think that hasn't yet subdivided it's 2 year Part I into IA and 1B.
ith regards to triple starred first - I think it's a bit ambiguous. You could get on if you got a starred first in all 3 Parts of a degree, if it had them, but also, as one geographer I know has done, you can get a triple starred first in 1 year of examinations: literally getting 3 levels above a first. But that won't happen for, well, hardly anyone! lol