People from all over Carmarthenshire are expected to attend a rally held by Cymdeithas yr Iaith outside County Hall, Carmarthen this Saturday.
The rally will voice concerns about the dramatic decline in the numbers of Welsh speakers in the county and to demand a future for local Welsh-speaking communities.
The families of, Gwynfor Evans and Ray Gravell will lead the crowd alongside prominent figures from the political and cultural world to pledge "Dw i eisiau byw yn Gymraeg / I want to live in Welsh".
Among those who have stated that they will sign the pledge on the day are Carmarthen Mayor Councillor Philip Grice, local County Councillor Alun Lenny and the leader of the opposition in the County Council, Councillor Peter Hughes-Griffiths.
Jonathan Edwards MP, actors Rhian Morgan and Gwyn Elfyn, former Archdruid John Gwilym Jones, former President of Merched y Wawr Glenys Thomas and FUW Vice-President Brian Walters will also be explaining why they're signing the pledge which demands action to safeguard the future of Welsh-speaking communities.
Also signing are eminent novelist and singer/songwriter Fflur Dafydd and chaired bard Tudur Dylan.
Cymdeithas yr Iaith Chairman in Carmarthenshire, Sioned Elin said: "Our hope is that over 1,000 people in Carmarthenshire will sign the Pledge by the end of this month. The Census figures have shocked a great deal of us and the rally is a chance for us all to get together to show our commitment to live in Welsh and to demand that the Welsh Government and our local County Council take urgent steps to strengthen and therefore safeguard our Welsh-speaking communities."
Cymdeithas yr Iaith National Chairman added: “There’s no point sitting back and accepting the Census results: with positive campaigning and political will, we can change our fate and that of our Welsh language communities. The language and its communities cannot afford more of the same from Government or organisations in Wales more widely."