First broadcast: on BBC Radio CymruLatest broadcast: on BBC Radio Cymru
Hanes dau berson o Gymru yn llythyru â phobl yn wynebu'r gosb eithaf. Two people from Wales share the letters they've received from prisoners facing the death penalty.
Mae rhaglen Cofion Annwyl yn edrych ar ymdrechion i ysbrydoli pobl ifanc i ysgrifennu llythyr. Efforts to get Welsh children to put pen to paper and write a letter.
First broadcast: on BBC Radio CymruLatest broadcast: on BBC Radio Cymru
Ymdrechion dau deulu i gadw cof am ddau filwr yn fyw drwy eu llythyrau o faes y gad. The moving story of two Welsh soldiers and their letters home from the battlefields of France.
First broadcast: on BBC Radio CymruLatest broadcast: on BBC Radio Cymru
Mam yr actor Ioan Gruffudd yn siarad am y tro cynta am y cyfnod pan fu'n ateb holl lythyrau 'ffans' ei mhab. Welsh actor Ioan Gruffudd's mother talks about answering his fan mail.
First broadcast: on BBC Radio CymruLatest broadcast: on BBC Radio Cymru
Hanes y ferch ifanc o Fôn aeth i weithio fel morwyn i Florence Nightingale. The story of a young girl from Anglesey who worked as a maid to Florence Nightingale.