The probably how it happened.

(Two founders sit around the state talking)
Founder 1: What's a good name for a state?
Founder 2: Maine.
Founder 1: Why?
Founder 2: Because that is my name and I am self-indulgent.
Founder 1: Word.

I can't pronounce G's

(Two state founders sit around talking)
Founder 1: Man, what do you mean you can't pronounce G's?
Founder 2: I can't... I don't know how to make that sound.
Founder 1: Man that shit is Maingy
Founder 2: What is Main-y?
Founder 1: Main-gy, my man, main-gy.
Founder 2: Main-y?
Founder 1: NO! Not Main-y, like main with an e at the end! That shit is stupid.
Founder 2: Whoa... Main-e... that's a badass name for a state.
Founder 1: You're fucking right. Word.

Crunch time...

(Two state founders sit around talking)
Founder 1: Virginia?
Founder 2: Taken.
Founder 1: Georgia?
Founder 2: Taken.
Founder 1: New York?
Founder 2: Taken.
Founder 1: New Jersey?
Founder 2: Gross. And taken.
Founder 1: Connecticut?
Founder 2: Taken.
Founder 1: Delaware?
Founder 2: Taken.
Founder 1: Maine?
Founder 2: No.
(Pause)
Founder 1: Man if we don't get to the bar in the next half hour we'll miss happy hour.
Founder 2: Maine it is.

Main Maine

(Two founders sit in the state talking)
Founder 1: So we gotta name this state, huh?
Founder 2: Yeah my main man...
Founder 1: What you thinking?
Founder 2: Don't know my main man.
Founder 1: I am the main man.
Founder 2: You are the main man.
Founder 1: Like, if there were a Main State I'd be from there.
Founder 2: Yessir Main Man.
Founder 1: What about Massachussets?
Founder 2: Already taken.
Founder 1: Balls.
Founder 2: Balls indeed my main man.
Founder 1: I am the main man.
Founder 2: What about Main, my main man?
Founder 1: Add an E.
Founder 2: Word.