Epsom Downs Racecourse the turf. In the summer of 1779 Edward Smith-Stanley, 12th Earl of Derby, organised a race for himself and his friends to race their three-year-old fillies. He named it the Oaks after his nearby estate. The race became so successful that in the following year 1780 a new race was added for three-year old colts and fillies—-the Derby. In 1784 the course was extended to its current distance of a mile and a half and Tattenham Corner was introduced. Henry Dorling, step-father to cookery writer Mrs Beeton, was a Clerk of the Course at Epsom, appointed in 1840. In 1913
Tattenham Corner line eventually began in 1896 and on 2 November 1897 a single-track line to Kingswood (originally "Kingswood and Burgh Heath") was complete. In 1899 Sir Cosmo Bonsor formed a private syndicate to have the line extended from Kingswood to its current terminus at Tattenham Corner in order to catch the racegoing traffic. By Derby Day on 4 June 1901, the extension to Tattenham Corner was opened, during which time the line was also upgraded from single to double track. The Chief Engineer to the Chipstead Valley Railway was Lt Col Arthur John Barry. The line was third rail electrified by Southern