That's great if he did! Though I didn't remember Herodotus mentioning Rome.
The ancient authors are wonderful to read, though we must be rather sceptical about various things. Tacitus,f.e., probably never travellled north of the Limes himself, but rely solely on accounts of others. Actual trade with the germans were reserved for the nabouring tribes, so how many people actually travelled far to the north during this time?
I found The Clouds rather boring. Though it's thougth provoking to know how a guy like Socrates was a subjcet of ridicule and scorn during his time, though he was the great master to teach all of the world about the truth.