Jack Dorsey Chairman after Dick Costolo replaced Williams as the CEO. On June 10, 2015, Costolo announced that he was resigning as CEO of Twitter, effective July 1, 2015. Dorsey would assume the post of Interim CEO upon Costolo's departure. He was named permanent CEO of Twitter on October 5, 2015. On the day after the controversy about Twitter's new algorithms for tweets, Dorsey responded to the trend, saying it was only a hoax. 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. This move was an
Evan Williams (jockey) Evan Williams (jockey) Evan Morgan Williams (9 May 1912 – 12 July 2001) was a horse racing jockey born in Cowbridge, Wales, in 1912. He won the 1937 Grand National on Royal Mail, and he won the Cheltenham Gold Cup in 1936 (on Golden Miller) and 1940 (on Roman Hackle). Evan Williams' father, Fred, was an amateur jockey. After service in the armed forces during the Second World War, he became a trainer and won the first running of the King George VI and Queen Elizabeth Stakes in 1951 (with Supreme Court). He later relocated to Ireland, and died on