Green Day's Dookie album was released on February 1, 1994.

That makes it twenty years old, according to math.  Dookie was Green Day's major record label debut.  It peaked at No. 2 on the Billboard 200.  The album has sold over 20 million copies.

Prior to the release of Dookie, Green Day had already gained traction with their second album, Kerplunk.  The band sold over 50,000 copies on their own.

But, the band exploded with Dookie.  The album included three No. 1 Alternative songs: Longview, Basket Case, and When I Come Around.

The Daily Beast's Andrew Romano says that Dookie is the second most influential rock album of the 1990s (after Nirvana's Nevermind).  Many say that Dookie made rock fun again.  It has influenced numerous pop-punk bands over the past two decades.