‘The Christian Topography of Kosmas Indikopleustes’
Edited by Jeffrey C. Anderson
This book is a technical history of the manuscripts and influence of the book ‘Christian Topography’ by Cosmas Indicopleustes in the Christian East, particularly in the Byzantine Empire and in Russia.
Also, half of the book consists of high quality full colour illustrations from the “Florentine” manuscript of the Christian Topography - one of three extant Byzantine Greek manuscripts.
The book is marvellously summarised in this review which actually constitutes an outline history of flat earthism in the Christian East:
https://bmcr.brynmawr.edu/2014/2014.07.23 The history broadly falls into two categories: Byzantine and Russian. The Florentine manuscript is proved to actually be a Constantinopolitan manuscript made in that city about the year 1080. It was only later after the Crusades taken to the house of a wealthy Medici which is how it became the Florentine Codex.
Cosmas Indicopleustes originally wrote this flat earth book in Egypt in the 500’s, and this proves that flat earthism was still alive in the Byzantine Empire and copies of his book were still being made 500 years after he lived.
It is also mentioned that this Constantinopitan manuscript closely follows the Sinai manuscript.
The final chapter dealing with Russian flat earthism indicates that over 90 Slavonic manuscripts of the ‘Christian Topography’ survive, and these were made from the 1200’s to the 1800’s. This means that Russia is the champion at preserving flat earthism since the Crusades.
After Peter Romanov westernised Russia in the early 1700’s, Russian flat earthism persisted among Russian Old Believers who continued to produce Slavonic manuscripts of the ‘Christian Topography’ after the Romanovs and the Russian government abandoned flat earthism.