Skyfall: When did the Spaceship Crash into Blackmoor?

[gsvenson]

In 1973 and early 1974 we were playing John Snider's "Star Empires" campaign at the same time that we were playing pre D&D in Blackmoor. The planet where Blackmoor was located was on John's star map near Scott Belfry's Avian empire, so his scout ships attempted to explore it. After losing some ships they quarantined the planet. Stephen Rocheford's minor humanoid empire might have been near it, too, since the aliens in the City of the Gods were humanoids. I think that Richard Snider's character had a cape, captured from the Avians, that allowed him to fly...