Northern Ireland is the only part of the UK where primary school pupils do not have to learn another language.
This explains why some aspects of English can be hard to learn for speakers of other languages.
Young people from working class backgrounds in socially deprived areas are far less likely to choose, or have the opportunity, to study languages at secondary school, than their more affluent peers.
Limited contact between the first British Sign Language communities created dialects that are still in use today.
Cwtch, drive and brammer are all commonly thought of as Welsh dialect terms, but they have actually come from all over the world.