In addition to deep and profound philosophy, classical Athens also scores in a slightly more prosaic subject:  the earliest documented mention of bedbugs comes from them.  It's in a play called The Clouds, written by Aristophanes.

In it, no less than Socrates is instructing a young man named Strepsiades.  Socrates asks his student what deep thoughts he is thinking.  Strespiades replies, "Whether there'll be anything left of me after the bedbugs have finished chewing."