1997 Welsh devolution referendum

The 1997 Welsh devolution referendum was a pre-legislative referendum held in Wales on 18 September 1997 over whether there was support for the creation of a National Assembly for Wales, and therefore a degree of self-government. The referendum was a Labour manifesto commitment and was held in their first term after the 1997 election under the provisions of the Referendums (Scotland and Wales) Act 1997.

Source: Wikipedia — 1997 Welsh devolution referendum (CC BY-SA 4.0)