military service, and also not being run for the profit of a private owner.

Although the term "public school" has been in use since at least the 12th century, its usage was formalised by the Public Schools Act 1868 (31 & 32 Vict. c. 118), which put into law most recommendations of the 1864 Clarendon Report. Nine prestigious schools were investigated by Clarendon (including two day schools,