Substantial Reading

I am continuing to reread Larry Niven's and Jerry Pournelle's The Mote In God's Eye first because it has inspired reflections relevant to the blog and secondly because I have become sufficiently involved with the narrative to want to follow it to its conclusion, then maybe
tackle the sequel.

An sf novel gains substance when it is incorporated into a future history series. Spot the odd man out in this list:

an imminent cosmic collision is detected by the inhabitants of the spindizzy-powered planet, He, as it flies between galaxies;

the Ringworld is explored by a Puppeteer, a kzin, a man and a teela;

the Mote System is explored by the warships MacArthur and Lenin from the Second Empire of Man;

the planets Ythri and Gray/Avalon were discovered during the Grand Survey;

the planet Merseia, shielded from supernova radiation by agents of the Polesotechnic League, later became the principal adversary of the Terran Empire;

the planet Satan is exploited by the Solar Spice & Liquors Company;

the planet Mirkheim is exploited by the Supermetals Company until the Baburites go to war over it;

Avalon, jointly colonized by human beings and Ythrians, is attacked by Terran Imperials, including a Cynthian and a Jerusalem Catholic;

a Wodenite Jerusalem Catholic enters the Patrician System just before Admiral Magnusson, a Merseian sleeper, rebels against the Terran Empire;

the Cloud Universe is explored by a Ranger of the Commonalty;

Orbitsville is colonized by human beings from a future Earth.