The maps are from the 16th and 17th centuries and they were done in Latin. History Lesson: In Britain, the language of Universities was French. The language of the church was Latin. The map is in Latin. In Germany the language of Universities was German and the language of the church was Latin. Case and point: the Gutenberg Bible was in Latin. The church at this time in history had profound influence on education. Seeing how these maps and many others like it are in Latin gives you a strong indication that they were influenced by Christian thought just as our calendars are.
And we can add history to the list of topics that you have no clue about.
Latin was the language of scholars and universities in all of Europe, until far into the 18th century.
Yes, the usage of Latin by the Church influenced this academic establishment, just as the very existence of universities was based on the organization of the Catholic Church.
And certainly the universities and scholars were "influenced by Christian thought".
But that doesn't mean that all of what they taught, all of what they discovered and all of what they produced was "influenced by Christian thought". A lot of it was definitly
against the teachings of the Church. Dogmatic disputes between the Church hierachy and universities strive for freedom of research was a major topic since the very establishment of universities.
And "Latin" alone does not indicate "Christian thought". Latin was, in the case you have missed it, the language of the main political body in the whole mediterranian world for centuries... a lot of it rather non-christian.
Our calenders, again if you have missed it, are pagan in origin. The origin of the current solar calendar was an egyptian model, introduced into the roman world by a very pagan C. Julius Caesar. The names and structures of the months are roman in origin... pagan Rome that is. The 7-day week does indeed come from middle-eastern origins... but you might have noticed that all of the germanic and anglo-saxon speaking world still uses the old germanic deities as the names of the days.
So instead of "our calenders" being influenced by the Bible, which used the Hebrew moon calender, it is rather the other way round: the Christian calender was heavily influenced by the pagan calender.