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Five facts about Mark Zuckerberg on his 30th birthday

Facebook founder Mark Zuckerberg turns 30 today, so CBS News has rounded up a few facts that you may have not known about the tech prodigy:

  • Facebook was not Zuckerberg's first attempt at creating a social network. While at Harvard in 2003, he first developed Facemash, a website that asked users to rate students' dorm-directory photos based on attractiveness. It was taken down shortly thereafter. The Harvard Crimson newspaper reported that in the short time the site had been up, it received 450 visitors who had voted on their peers' photos at least 22,000 times.
  • Ever wondered why he went with a blue color scheme for the Facebook logo? The founder himself is apparently red-green colorblind. As Zuckerberg told the New Yorker in 2010, "blue is the richest color for me -- I can see all of blue."
  • In 2010, the young billionaire signed a public commitment to give away 50 percent of his wealth or more during his lifetime or upon his death. The "Giving Pledge" was started by Microsoft founder Bill Gates and investor Warren Buffet. Facebook's Chief Operating Officer Sheryl Sandberg also joined last week, according to Forbes.
  • He may be a tech genius, but he knows his limits. When Charlie Rose interviewed Zuckerberg and COO Sheryl Sandberg in 2011, Zuckerberg was asked if he planned on creating video games. Zuckerberg told Rose, "No, I'm pretty sure we're not going to build any games. I'll tell you why. Because building games is really hard."
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