<prompt> Qedela umusho olandelayo: Umthetho waseWales ka-1978 wawungumthetho wePhalamende lase-United Kingdom owawuhloselwe ukwethula izinga elilinganiselwe lokuzibusa eWales ngokwakha i-Welsh Assembly. Lo mthetho awuzange ube nomthelela ngenxa yokuvota cha ngo-  <response>: I-1979 Welsh devolution referendum futhi yachithwa ngo-1979. 