The site is full of 'spoilers' for the book

Living Labyrinth

by Ian Stewart and Tim Poston

If you can't read St Matthew's Gospel because St Mark gave away the resurrection, don't explore further.

I like background on books:
let me in, and do not warn me again

or Go to where I can get the book.

Gazetteer of Concordat

NB this is not a uniform listing of facts for each planet: it is 'what most people casually remember' without checking their wristcomps. Know these things, or people will wonder about you.