MICHAEL GROTHAUS 03.21.16 7:15 AM 
It’s hard to believe, but the microblogging service Twitter turns 10 years old today. On March 21, 2006, the service officially went live with Jack Dorsey sending the first tweet ever, which read: "just setting up my twttr."

"On March 21, ten years ago, it began with a single Tweet. Since then, every moment of everyday, people connect about the things they care about most — all over the world," the company wrote in a blog post commemorating its tenth anniversary. "As we mark this milestone, it’s you we want to celebrate. As March 21 begins around the world, each of our global offices will kick off the day by showing our appreciation and gratitude — starting in Sydney and following the sun to headquarters in San Francisco. We are excited to celebrate with all of you. Throughout the years, you’ve made Twitter what it is today and you’re shaping what it will be in the future. Thank you for making history, driving change, lifting each other up and laughing together every day."

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