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started company were he sold his dispatched software through the web
Later Dorsey came up with idea that would combine the idea of a dispatch software with the ease of instant messaging. -
Pitched the idea to an organization called Odeo Dorsey said,”'What if you could share your status with all your friends really easily, so they know what you're doing?”
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Dorsey, Stone and Odeo co-founder Evan Williams started a company called Obvious which later evolved into Twitter.Within 2 weeks Dorsey created a site where users can post status updates that were up to 140 characters long, known as tweets.
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On March 21, 2006, Jack Dorsey posted the world's first tweet: "just setting up my twttr." Dorsey was named the company's chief executive officer
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October 2008 Co-founder Evan Williams replaced Dorsey with Dorsey staying on top as company chairman
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In 2010, Twitter had more than 105 million users who together tweeted some 55 million times a day.