What if christianity never existed ?

[abaris]

The monks would not have created the university system in the middle ages that was the forerunner to modern western science and perhaps there would be no modern liberal atheism.

You're not very informed, are you? First, the monks didn't create universities, secular rulers did. In the cities, which is a different legal and social puppy compared to the countryside back then.

Also there were only three faculties. Law, Medicine and Theology. Leading up to that were the Studia Generalis which mainly covereed rhetoric.

The monks preserved some of the ancient knowledge. But only what didn't contradict their believes and, as opposed to other, non christians cultures, didn't build on it. That's one of the reasons why Galen was still the utmost medical authority in the Middle Ages in Europe. And that's why the Roman aqueducts fell into disrepair and the city itself devolved from one million citizens to about 20.000 in the Middle Ages.