U. S. My Little Ponies (1982-1995)
My Little Pony and Pony Friends Pages

Many ponies sold in the U. S. were often sold somewhere around the world as well, sometimes with different names.  They earned the title U. S. ponies because many of the earlier collectors were from the U. S. and used this reference point.  It has become widely accepted to refer to these as U. S. ponies and accept U. S. dates for references.