I was talking more about, and I don't know the right words to describe them, but more like medicine, engineering etc.
You must be thinking of mathematics...
Pythagoras 500BC ish. Still kind of applies.
Euclid, the father of geometry, 200 years later.
Physics, maybe? Archimedes; a ton of stuff including displacement, calculus (iirc), and good at screwing too.
If you want to get to the moon and back, then a grasp of Newtonian physics is pretty handy. 400 years old.
I'm pulling your leg a bit mate, but my personal opinion is that science isn't enormously helpful in the argument against religion. As soon as I say, my God (or Gods) exist beyond the realms of the observable universe, it kind of falls down as a 'proof'.
My entirety personal take on it is believe in whatever you want, or believe in nothing at all, but don't think what you believe is the only possible truth, and that it puts you beyond the law of man.
Anyway, I digress. For my money though, it isn't religion that's the biggest threat to humanity - it's greed and short-sightedness, and our simple inability to come up with a system of economics that doesn't destroy the planet.