Abstract
This article focuses on the colophons of F. Skaryna's Prague editions from 1517 to 1520.
A comparative analysis of them indicates that the publisher was meticulous in identifying the origin of each colophon edition. The phrase, "in the Old City of Prague" which Skaryna used until August of 1518, was eventually amended to be known as, "in the Great City of Prague".
This amendment was predetermined by actual historical events such as the unification of the Old and New Cities into the Great City of Prague on the 30th of August 1518. Other examples of influence of this historical situation on the illustrative style of the book are traced.
Particular attention has been paid to locating the printing house where Skaryna's colophons were first created.