Poverty, gender, ethnicity, language, location and disability are obstacles to providing education to the hardest-to-reach groups.

UNESCO: EDUCATION

There are separate awards for pupils who have overcome physical disability, language or social problems to improve their writing.

BBC: boy writing

Progress towards EFA is thwarted by different types of disadvantages and discrimination, such as gender, income, location, nationality, disability, language, race and ethnicity.

UNESCO: EDUCATION

It focuses on the fact that while progress has been made, the failure to reach the millions of children excluded from education by poverty, gender, location, ethnicity, disability and language means the 2015 Education for All (EFA) goals remain out of reach.

UNESCO: WORLDWIDE

The Smith-Magenis Syndrome Foundation UK said major features of the condition include mild to moderate intellectual disability, delayed speech and language skills, distinctive facial features, sleep disturbances, and behavioural problems.

BBC: Sussex Police restraint of disabled girl, 11, probed

It bans all discrimination on grounds of race or sex, as well as for pregnancy, age, disability, belief, culture, language or social or economic status.

ECONOMIST: Race, law and poverty in the new South Africa | The

Some said disability got the prize for him, but what won it was the language, uncorralled and fresh as though the words had never been tried before.

ECONOMIST: Christopher Nolan

Hispanic children had lower rates of disabilities than white or black children, which perhaps reflects language difficulties and other barriers to accessing health services rather than the true rate of disability.

CNN: CDC: Autism, ADHD rates on the rise

The index takes into account many different types of diversity including gender, age, ethnicity, disability, country of birth, skills and education, number of hours worked, language, and sectoral and geographical distribution.

FORBES: Top 5 Industry Sectors In Workforce Diversity