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In May 2016, Dorsey announced that Twitter would not count photos and links in the 140-character limit to free up more space for text. ĭorsey and President Barack Obama at Twitter Town Hall in July 2011 On the day after the controversy about Twitter's new algorithms for tweets, Dorsey said it was a hoax. He was named permanent CEO on October 5, 2015. Dorsey assumed the post of interim CEO upon Costolo's departure. On June 10, 2015, Costolo announced his resignation as CEO, effective July 1, 2015. On March 28, 2011, he returned to Twitter as executive chairman after Dick Costolo replaced Williams as CEO. In February 2010, Dorsey was part of another State Department delegation, this time to Russia. Since President Obama had announced that there would be no meddling in Iran, the move sparked controversy. Dorsey responded to a request from Cohen to delay the maintenance so that it would not affect the revolution in Iran, because Iranians were using Twitter to communicate and coordinate. In November, when Iranians took to the streets in the Green Revolution, Twitter was scheduled to conduct maintenance of its site, which would entail temporarily shutting down Twitter's servers. During his time as chairman, Dorsey joined several State Department delegations, including a trip to Iraq in April 2009, led by Jared Cohen. On October 16, 2008, Williams took over as CEO, while Dorsey became chairman of the board. His three guiding principles, which he says the company shares, are simplicity, constraint, and craftsmanship. Dorsey described the commercial use of Twitter and its API as two things that could lead to paid features. Īs the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue-which, as of 2008, Twitter was not designed to earn. He reportedly lost his position for leaving work early to enjoy other pursuits, such as yoga and fashion design. As CEO, Dorsey saw the startup through two rounds of funding by venture capitalists. Dorsey became Twitter's Chief Executive Officer (CEO). The idea attracted many users at Odeo and investment from Evan Williams, a co-founder of that firm in 2005 who had left Google after selling Pyra Labs and Blogger.Įvan Williams, Biz Stone and Noah Glass co-founded Odeo, later renamed Obvious Corporation, which then spun off Twitter, Inc. Dorsey and Biz Stone decided that SMS text suited the status-message idea, and built a prototype of Twitter in about two weeks. He approached Odeo, which at the time happened to be interested in text messaging. When he first saw implementations of instant messaging, Dorsey wondered whether the software's user status output could be shared easily among friends. In July 2000, building on dispatching and inspired in part by LiveJournal and by AOL Instant Messenger, he had the idea for a Web-based realtime status/short message communication service. His other projects and ideas at this time included networks of medical devices and a "frictionless service market". In 2000, Dorsey started his company in Oakland to dispatch couriers, taxis, and emergency services from the Web.
While working on dispatching as a programmer, Dorsey moved to California. He came up with the idea that eventually became Twitter while studying at NYU.
Dorsey enrolled at the University of Missouri–Rolla in 1995 and attended for two-plus years before transferring to New York University in 1997, but he dropped out two years later, one semester short of graduating.
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Some of the open-source software he created in the area of dispatch logistics was still being used by taxicab companies as of May 2007. By age 14, he had become interested in dispatch routing. In his younger days, he worked occasionally as a fashion model.
ĭorsey attended Bishop DuBourg High School. He was raised Catholic, and his uncle is a Catholic priest in Cincinnati. His father worked for a company that developed mass spectrometers and his mother was a homemaker. He is of part-Italian descent on his mother's side. Louis, Missouri, the son of Tim and Marcia (née Smith) Dorsey.
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