Jack Dorsey days, Dorsey worked occasionally as a fashion model. By age fourteen, Dorsey had become interested in dispatch routing. Some of the open-source software he created in the area of dispatch logistics is still used by many taxi cab companies. Dorsey attended the University of Missouri–Rolla for two-plus years (1995–1997) before transferring to New York University, but he dropped out in 1999, one semester short of graduating. He first came up with the idea that he developed as Twitter while studying at New York University. While working on dispatching as a programmer, Dorsey moved to California. In 2000, Dorsey started his
Sean Dorsey Sean Dorsey Sean Dorsey is a transgender and queer choreographer, dancer, writer and trans rights activist. He is widely recognized as the United States' first acclaimed transgender modern dance choreographer. Dorsey founded his San Francisco-based dance company Sean Dorsey Dance, which incorporates transgender and LGBTQ+ themes into all of their works and has toured to 30 cities internationally. Along with creating a dance company, Dorsey is also the founder and artistic director of Fresh Meat Productions. Founded in 2002, Fresh Meat Productions is a non-profit organization that invests in the creative expression and cultural leadership of transgender and gender-nonconforming communities.