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Eight lives changed by Twitter

Published On: Mar 21 2013 02:22:14 PM CDT   Updated On: Dec 26 2013 01:43:23 PM CST

An offensive tweet about AIDS in Africa created a firestorm over the weekend and ultimately cost public relations executive Justine Sacco her job. Check out eight lives changed by the popular microblogging site.

Jack Dorsey
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Stephen Lam/Reuters

Twitter debuted March 21, 2006, when co-founder and current Twitter executive chairman Jack Dorsey typed the words "just setting up my twttr."

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