A record jackpot of $476 million is up for grabs in the Massachusetts Lottery's "Mega Millions" game.

Mega Millions is a multi-state lottery game. Massachusetts began participating in August of 1996, when the game was called, simply, "The Big Game". The name "Mega Millions" was adopted in June, 2005, according to the state lottery website.

The Bay State's biggest winner was Maria Grasso, a babysitter from Boston's Beacon Hill neighborhood, who claimed a $197 million jackpot in April, 1999.