I got pm saying Tristan did not introduce Aurifil to the US.
This is on their website:
Tristan Italian Threads :: Aurifil Threads
We introduced Aurifil to North America in 1998 that since has become one of the more popular threads. Now we are fortunate to be representing the major Italian thread producer Cucirini Tre Stelle. Take advantage of our specials and try out the highest quality threads for quilting, sewing and embroidery.