The Centum group, often incorrectly presented as being identical to "non-Satem", i.e. as including all remaining dialects, was in fact created by its own sound change independent from and predating the Satem sound change.
The Centum group incorrectly presented as being identical to "non-Satem", i.e. as including all remaining dialects, was in fact and predating the Satem sound change. This was often. This fact was created by its own sound change independent from.