Facebook is 10

Facebook CEO Mark Zuckerberg

To celebrate the milestone, the social network has released a tool called A Look Back that compiles a user’s pictures and videos into a slideshow with sentimental music.

CEO Mark Zuckerberg also marked the occasion by posting a nostalgic letter on his public Facebook page.

"When I reflect on the last 10 years, one question I ask myself is: why were we the ones to build this? We were just students. We had way fewer resources than big companies. If they had focused on this problem, they could have done it,” he wrote. “The only answer I can think of is: we just cared more."

He went on to say that he’s more excited about the company’s next 10 years than its first 10.

"The first 10 years were about bootstrapping this network. Now we have the resources to help people across the world solve even bigger and more important problems," he continued.

Meanwhile, Pew Research Center made note of the milestone by releasing a report with six new facts about Facebook usage.

According to the report, Facebook is used by 57 percent of all adults and 73 percent of all people age 12 to 17. Pew said the study found that adult usage of Facebook is intensifying while teen usage is evolving.