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
Sir Evan Williams, 1st Baronet Sir Evan Williams, 1st Baronet Sir Evan Williams, 1st Baronet, of Glyndwr (2 July 1871 – 3 February 1959) was a Welsh industrialist. As Chairman of the Monmouthshire and South Wales Coalowners Association and later President of the Mining Association of Great Britain, he exerted considerable influence on the mining industry in the UK. Williams was born at Pontarddulais, the son of mine-owner Thomas Williams, and was educated at Christ College, Brecon, and Clare College, Cambridge. Having taken over his father's business, Thomas Williams and Sons (Llangennech), Ltd, he became Chairman of the Monmouthshire and South Wales Coalowners Association in