20 mlynedd ers cytundeb Gwener y Groglith, faint o newid sydd wedi bod i bobol Gogledd Iwerddon? 20 years on, how has the Good Friday Agreement changed lives in Northern Ireland? Show more
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20 mlynedd ers cytundeb Gwener y Groglith, faint o newid sydd wedi bod i bobol Gogledd Iwerddon? 20 years on, how has the Good Friday Agreement changed lives in Northern Ireland? Show more