"WALES. See under ENGLAND".

from wikipedia:-

"Wales was for centuries dwarfed by its larger neighbour, England. Indeed, one well-known British encyclopedia was said — perhaps apocryphally — to have had an entry reading "WALES. See under ENGLAND.

The Act of Union 1536 abolished the remaining Marcher Lordships, and applied the Law of England to both England and Wales, requiring the English language for official purposes. This excluded most native Welsh from any formal office.

In 1955 steps were taken to re-establish a sense of national identity for Wales when Cardiff was established as its capital. Before this, legislation passed by the UK parliament had simply referred to England, rather than England and Wales."