This Q3 reality saw the “Canterbury Event” (a meteorite swarm that struck the Moon in 1178) miss the Moon, plow across the Eastern Hemisphere, wipe out urban civilization and usher in a new Ice Age.

In current year 1492, the dominant civilizations, at TL2, are the Aymara Empire along the Brazilian coast and a Muskogean confederation in the Ohio Valley.

GURPS Infinite Worlds 134