One day in early 2005, interface designer Bas Ording was sitting in a secret, windowless lab at Apple HQ when the phone rang. It was Steve Jobs.

The first thing Jobs says is that the conversation is super-secret, and must not be repeated to anyone. Ording promises not to.

“He’s like, ‘Yeah, Bas, we’re going to do a phone,'” Ording told Cult of Mac, recalling that momentous call from long ago. “‘It’s not going to have any buttons and things on it, it’s just a screen. Can you build a demo that you can scroll through a list of names, so you could choose someone to call?’ That was the assignment I got, like pretty much directly from Steve.”

The iPhone packed a lot into its first astonishing decade. Not only has the device itself evolved significantly since its promising-but-by-no-means-perfect beginnings, but it’s transformed Apple’s business — and many of our very lives — in the process.

All this week, Cult of Mac’s “iPhone Turns 10” series will look at the innovative device’s massive impact on worldwide culture. The iPhone, which launched on June 29, 2007, truly changed the world.

What iPhone milestones have passed since Steve Jobs introduced this stunning hybrid device, which combined a widescreen iPod with touch controls, a revolutionary mobile phone, and a breakthrough internet communications device? Check out our handy guide to 10 years of iPhone history.