On January 9, 2007, Apple’s Steve Jobs changed the world. After years of speculation, the famed CEO unveiled the first iPhone, a revolutionary device that shucked convention and became the blueprint for all modern smartphones available today.

But Apple’s first iPhone didn’t just appear overnight. The device was developed in secret and took years of hard work, as the company sought ways to evolve from the iPod, another revolutionary device that changed how people consumed music.

You probably know the history behind the iPhone by now. But if you don’t, this video from Vector’s Rene Ritchie is worth a watch.

In the video, Ritchie covers the complex history behind the most famous smartphone ever created, using footage from the event and interviews with those who were there. The video creates an evocative picture of what is now and always will be one of the most important innovations in history.