Facebook Cracks 1 Billion User Milestone in a Single Day, Zuckerberg Says

Over the course of 24 hours, 1 in 7 people in the world logged on to Facebook.

— -- For the first time ever, one billion people have logged onto Facebook in a single day, meaning 1 in 7 people in the world accessed their profiles, according to the company's co-founder and CEO Mark Zuckerberg.

The milestone moment happened on Monday but was shared today in a Facebook post on Zuckerberg's wall.

"When we talk about our financials, we use average numbers, but this is different. This was the first time we reached this milestone, and it's just the beginning of connecting the whole world," Zuckerberg wrote.

"I'm so proud of our community for the progress we've made. Our community stands for giving every person a voice, for promoting understanding and for including everyone in the opportunities of our modern world."

Facebook revealed in its last earnings report the social network has 1.49 billion monthly active users.