A lot has changed in 12 years; just look at the world in 2001, when the seniors entered kindergarten, to when they entered their senior year in 2013.

2001:

Popular Toys: IPod,  Xbox, K’NEX, Bratz Dolls, Game Cube, Playstation

Biggest Movies: Harry Potter and the Sorcerer’s Stone, Lord of the Rings: Fellowship of the Rings, Shrek, and Monster’s Inc.

Popular TV Shows: Friends, CSI, ER, and Everybody Loves Raymond

Number One Songs: Cha Cha Slide– Mr. C the Slide Man, I’m a Believer– Smashmouth, I Hope You Dance– Lee Ann Womack, and Pop– *NSync

Average Gas Price: $1.46 per gallon

2013:

Toys: Xbox Kinect, Ipod Touch, Kindle Fire, Pillow Pets

Movies: Hunger Games: Catching Fire, Frozen, Monster’s Inc. 2, The Hobbit: The Desolation of Smaug, and Despicable Me 2

TV Shows: Game of Thrones, Breaking Bad, The Walking Dead, The Big Bang Theory, and American Horror Story

Top Songs: Blurred Lines– Robin Thicke, Harlem Shake– Baauer, and Roar– Katy Perry

Average Gas Price: $3.55 per gallon