Future History Connectivity

"'...about thirty years back,[the Baburites] tried to muscle in on a business that Solar had in a stuff called bluejack, on a planet in their neighborhood. For them, it was more lucrative than for us. Still, our factor there didn't see why we should tamely accept what amounted to straight robbery. He euchered them out of their gains by a clever trick, and made sure they could get no benefit from returning. That was the first aggressive move Babur made in space.'"
-Mirkheim, I, p. 46.

"Hloch has therefore chosen two final tales...
"The first of them is the last that Judith Dalmady/Lundgren wrote for Morgana. Though she was then in her high old age, the memories upon which she was drawing were fresh.
"-Hloch of the Stormgate Choth
"The Earth Book of Stormgate"
-Poul Anderson, "Wingless" IN Anderson, Rise Of The Terran Empire (Riverdale, NY, 2011), pp. 293-306 AT p. 294.

Blog quiz: what is the hidden but direct connection between these two passages?