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Over the past several years, we've documented quite a few notable tweets, from the first Twitter marriage proposals to the first tweeting fetus. From the service's role in international politics to its part in devastating natural disasters, Twitter has become a huge part of how many of us communicate with one another, consume news, act as journalists and react to our own culture.
Here are 10 of the most noteworthy Twitter updates since 2006. In the comments, let us know which important tweets had an impact on your life.
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