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If you're on Facebook, you've probably seen them shared today: Facebook's "A look back" videos.

The videos were created by the Facebook team in celebration of the social media network's 10th anniversary.

Mark Zuckerberg, founder and CEO of Facebook, posted a message reflecting on what Facebook has become.

"People often ask if I always knew that Facebook would become what it is today. No way," he said. "I'm so grateful to be able to help build these tools for you. I feel a deep responsibility to make the most of my time here and serve you the best I can."

The one minute videos are comprised of statuses and photos created and shared by you over your time on Facebook, and then set to music that will make you "feel feelings."

Check out yours by going to Facebook.com/lookback.