Gene Wolfe's Book of the New Sun (SPOILERS)
The SF-Lovers list — 1 messages, 1 voices, 07 Feb 1996
https://urth.darkrealm.vip/thread/sflovers/134

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M. Gallo — 07 Feb 1996, 15:36

> Marcus Ogden  <mwo20 at cam.ac.uk> wrote:
> Earlier, eh? How do you figure this? (I haven't read "Calde" yet, so
> forgive me if there are giveaways in that book.)

I think you've run across the hints already.  The Whorl was built and
launched during the reign of Typhon, which was certainly a long time before
Severian.  At the start of _Nightside_, I think the Whorl had been
traveling for 300 year ship's time.  I don't remember any indication of how
fast the Whorl was traveling, so time dilation might do strange things to
the story's timeline.

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