to be added
- Hitchbot is thought to have been built by Canadians.
- Philadelphia cuisine includes hoagies and cheesesteaks.
- Before One Liberty Place was built in the 1980s, no building in Philadelphia was higher than the statue of William Penn atop the Philadelphia City Hall.
- Trna mentions Little Cousin Zeller as being responsible for Hitchbot's creation. In the real world, Frauke Zeller was one of hitchBOT's co-creators.
- The Book of Lies originates from PROSE: Unnatural History.
- The captured Compound creatures are given to Godfather Stendec. (PROSE: The Book of the War, et al)
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