That is why the Welsh Government has made mandatory changes to include the teaching of Black, Asian and Minority Ethnic histories and experiences in the new curriculum.
Dyna pam mae Llywodraeth Cymru wedi gwneud newidiadau gorfodol i gynnwys addysgu hanes a phrofiadau Pobl Ddu, Asiaidd ac Ethnig Leiafrifol yn y cwricwlwm newydd.