The Battle of Grand Gulf was fought on April 29, 1863, during th: Ethnic diversity varies significantly across the UK. 30.4 per cent of London's population and 37.4 per cent of Leicester's was estimated to be non-white in 2005[update],[341] whereas less than 5 per cent of the populations of North East England, Wales and the South West were from ethnic minorities, according to the 2001 census.[342] In 2016[update], 31.4 per cent of primary and 27.9 per cent of secondary pupils at state schools in England were members of an ethnic minority.[343]