Following development and consultation throughout 2021, the first wave of national milestones were laid before the Senedd in December 2021 and the second wave were laid in November 2022.
Ym mis Rhagfyr 2021, cafodd naw carreg filltir genedlaethol gyntaf Cymru eu gosod yn y Senedd ac fe wnaethom ymrwymiad i gwblhau’r gweddill erbyn diwedd 2022.