Twenty years ago, two Stanford PhD students created Google, Tamagotchi toys were a worldwide phenomenon, and "Harry Potter and the Sorcerer's Stone" hit shelves for the first time.
Ten years later, in 2007, Netflix launched its video streaming service, Instagram didn't exist, and most of us were still using flip phones.
From the cities we live in to the technologies we use every day, we've rounded up 24 before-and-after photos that show just how quickly the world changes.
Check out the incredible transformations below:
THEN: Here's a photo of the original iPhone next to an advertisement for the iPhone 3G.
Apple co-founder and then-CEO Steve Jobs debuted the first iPhone on June 29, 2007. Its multi-touch display, which let you use two or more fingers on the screen at once, revolutionized mobile phones forever.
NOW: In a mere decade, Apple has transformed the way we use our phones.
The company released three new iPhones on September 12, 2017: the iPhone 8, the iPhone 8 Plus, and a high-end redesigned model called the iPhone X.
See more photos of the iPhone's evolution over the past decade here.
THEN: This is what text messaging looked like on the original iPhone.
Apple's instant messaging service, iMessage, wasn't introduced until 2011 on iOS 5.
See the rest of the story at Business Insider