Um I think humanity becomes more ignorant as time continues.
Yeah, because when we used to burn people because we thought they were witches, we were SO enlightened?
And when we worshiped human kings, pharaohs, and caesars as if they were gods, that was the pinnacle of human intelligence?
Oh, and don't forget how doctors "cured" people through blood-letting, counter-curses, or downright murder -- indicating that modern doctors with their surgery and medicines are so much more ignorant?
Sorry, but you're just plain wrong. Humanity has become more enlightened and closer to God with every passing age. We're not perfect yet, but we're closer to it now than we were before the time of Jesus. Paul even speaks of it in his letters ... how slow we were to understand God, that he tried to tell his message through his prophets, and we didn't really understand it until he sent his Son.
We still don't really get it sometimes, but like I said, we're closer now than we were before, and I have faith that at some point in the future, God will bring the whole world to Him. I'm sorry if your faith teaches otherwise.