Without the printing press, very few letters or documents would actually be printed. These documents have a great effect on those who read them. It inspires others to explore. Without the exploration of many, the world would be vastly different, geographically and culturally.
This exploration was boosted by the fact that in 1500 CE (just 8 years after Colombus' journey to the Americas) there were hundreds of printing presses in Europe. This allowed Colombus' letters to be printed for the masses to read and be inspired by them.
In Document D, there is a map. It holds production locations and languages. In 1493, Colombus' letter to the king and queen of Spain was published in the cities of Rome, Barcelona, and Paris and in the languages of Spanish, Latin, and French.
The printing press was very important because people needed maps of what they believed the world looked like, and if there was no printer, then all the maps would be different. The printing press gave people more access and made it easier for people to be able to share the same information.
Even if a map was printed wrong, it would still encourage exploration. People would keep exploring and creating better, more accurate maps. They might not have always been right, but it still had the power to spread awareness.
The exploration was driven by the printing press. The printing press allowed several different documents to be printed and alerted the word about the opportunities that awaited individuals without the press no one would have been aware.
Without the printing press, the lutheran religion would have not have been able to grow at a steady rate. Martin Luther relied on the printing press to print 300,000 german bible which he relied on to spread him message.
The printing press created documents like maps, which sparked exploration and travel. People could use the information from the map to travel more easily and to know where they were going. Exploration helped people reach new parts of the world.
Couldn't this cause less open-mindedness though? People could see other religions and believe that they were morally superior. This could cause wars, create great divides, and spread disinformation. Yes, many of it was Catholic, but "Catholic" regions were not solely Catholic practitioners.
People might see it as you said; but it would create opportunities for people to learn about other religions and open their minds to educate themselves about other them. If you don't learn about anything other than what you are used to then you cant grow
The Protestant Reformation was the most important consequence of the Printing Press because it helped Martin Luther go against the Catholic Church and get his ideas around all of Europe thus leading to the creation of the Lutheran language