This Quantum 7 parallel has only been of real interest to Infinity in the last few years. On the surface, it was merely a slightly dull world where the post-Revolutionary United States broke up its trans-Appalachian territories into distinctly different states. What was missed was that this was primarily due to a somewhat more powerful Freemasonic influence in Craft-1 - and that this influence was due to that society's unlocking of true esoteric arts sometime in the mid 1750s. The result was a normal mana world with several areas mildly aspected towards the Communication and Empathy school of magic.
Once its unique nature was discovered, Craft-1 instantly went from not-particularly-interesting to full-fledged Z3 restricted... and the I-Cops are only moderately hopeful that they caught the problem in time.
Infinity gingerly tracks an alternate Compromise of 1850 while simultaneously trying to determine the extent of cross-time contamination, in both directions.