Only 10 years ago, the Internet was a very different place - it was impossible to easily watch music videos, MySpace was the premier social media platform, looking up DIY videos was a hassle and the Rick Roll meme didn't even exist.
Then YouTube happened and everything changed.
Nowadays, most people can't go a day without going on the Google-owned site to look up cute cat and puppy videos at work or check out the latest viral video. When Chad Hurley, Steve Chen, and Jawed Karim, all PayPal employees at the time, launched YouTube on Feb. 14, 2005, they changed much more than just Internet culture, though.
Likewise to music, YouTube led to a massive change in the entertainment industry. The site's launch and success predates Netflix streaming and Hulu. All three platforms now offer consumers ways to watch television shows and movies from the comfort of their own home.
It doesn't just stop there. YouTube has changed the definition of celebrity, created the definition of vlogging, overhauled the advertising industry and discovered new ways for people to learn and teach.
As Telegraph reported, the third-most visited site on the web is so special because it gives users complete control - anyone can put the "You" in "YouTube." Who knows what YouTube will bring to Internet users in the next 10 years.