What was the lasting effect of the Roman Catholic Church becoming the official church of the Roman Empire?

The pope continues to have the power of a king, but on a global scale.
The Roman Catholic Church still largely influences European governments.
The Roman Catholic Church dominated European society for one thousand years.
Other religions and beliefs were never able to emerge across Europe.

Question

What was the lasting effect of the Roman Catholic Church becoming the official church of the Roman Empire?

The pope continues to have the power of a king, but on a global scale.
The Roman Catholic Church still largely influences European governments.
The Roman Catholic Church dominated European society for one thousand years.
Other religions and beliefs were never able to emerge across Europe.

surana · Answer

Hint, If I had to make a rhyme in time with something sometime, I would choose to talk about a tree that was duplicated by the number three.

warpedkitten · Answer

Um, C? lol, I'm not sure. @Surana

surana · Answer

What rhymes with tree, is a three, and starts with a C?