Twitter is celebrating its 10th birthday today. Twitter now joins Facebook and LinkedIn as one of the few social networks that survived the test of time. Since its launch in 2006, Twitter has undoubtedly changed the way many of us (and brands) generate, consume, and share content. Twitter’s most compelling value proposition? Real time content. The element of real time continues to be the company’s North Star with the introduction of the Moments feature last year. The feature highlights and curates top daily stories around the world. From the Arab Spring to Ellen DeGeneres’ Oscars selfie, here are the top memorable that best highlight Twitter’s real time history. See them all at Forbes.