Since the launch of Twitter on July 15, 2006, there have been many notable uses for the service in a variety of environments, including political, economic, social and cultural uses. As users tweet their messages on Twitter, they encourage other people to respond and engage in online discussions as well as offline activities. User engagement on Twitter is usually measured with likes, replies and retweets and is a form of social power.
Russian President Dmitry Medvedev opens a Twitter account in Twitter's offices on 23 June 2010.
NASA's Space Station crew tweetup, October 21, 2009
A University of South Florida researcher deploys Tavros02, a solar-powered "tweeting" AUV (SAUV)
X, commonly referred to by its former name Twitter, is a social media website based in the United States. With over 500 million users, it is one of the world's largest social networks and the fifth-most visited website in the world. Users can share text messages, images, and videos through posts. X also includes direct messaging, video and audio calling, bookmarks, lists and communities, and Spaces, a social audio feature. Users can vote on context added by approved users using the Community Notes feature.
A sketch, c. 2006, by Jack Dorsey, envisioning an SMS-based social network
Jack Dorsey, co-founder and former CEO of Twitter, in 2009
Twitter's San Francisco headquarters located at 1355 Market Street
Donald Trump's Twitter post