Mae'r cwcis hyn yn gwbl angenrheidiol ar gyfer weithrediad y wefan.
Rydym yn defnyddio Google Analytics i fesur sut ydych yn defnyddio'r wefan er mwyn i ni ei wella yn seiliedig ar angen defnyddwyr.
Gall y cwcis hyn gael eu gosod gan wefannau trydydd parti a gwneud pethau fel mesur sut rydych yn gwylio fideos YouTube.
Amgueddfa Cymru
A copy of a letter from L. Hopkins (Swansea) concerning the Plygain - '...the Plygain is very much alive in the Methodist chapels in this district. For instance, it is practised in my own chapel (Capel y Cwm Welsh Methodist) every year at 6 a.m. One of our senior deacons, who died about a year ago in his nineties, said that it had been held continuously back to the 1830's and probably back to the late eighteenth century...'
