110 metres hurdles 100 yards (91.44 m). The first standards were attempted in 1864 in Oxford and Cambridge: The length of the course was set to 120 yards (109.7 m) and over its course, runners were required to clear ten 3 foot 6 inch (1.07 m) high hurdles. The height and spacing of the hurdles have been related to Imperial units ever since. After the length of the course was rounded up to 110 metres in France in 1888, the standards were pretty much complete (except for Germany where 1 metre high hurdles were used until 1907). The massively constructed hurdles of the
400 metres hurdles of Athletics Federations (IAAF) introduced the event officially as a discipline in 1974, although it was not run at the Olympics until 1984, the first Men's World Champion having been crowned the year before at the inaugural IAAF World Championships in Athletics. A special edition of the Women's 400m Hurdles happened in the 1980 IAAF World Championships in Athletics in response to the Women's 400m Hurdles not being included in the boycotted 1980 Moscow Olympics and the Liberty Bell Classic. Many athletic commentators and officials have often brought up the idea of lifting the height of the women's 400 m