People are mentioning Minthe in mythology (new info, yay!) but I just wanted to highlight Ment's origin as it was given here. Mint is notorious for being very easy to grow. So easy, in fact, that if you decide to put mint into your compost and later spread that compost around, you will end up with it covering your entire garden. So the reason Ment gave of some mint just being "mixed in with the dirt" is actually completely valid!
P.s. I've heard that you actually can put mint into compost but it has to be COMPLETELY DEAD/DRIED. Like, only after digging it up, wrapping it in a bag so it gets no sunlight, and leaving it like that for at least 2 weeks. Even after all that though if there's any bit of mint in there that hasn't fully died it could still explode in your garden. I personally never risk it, just put something else in your compost instead!
Happy planting!