Global '100-year gap' in education standards - BBC News
When it comes to education the differences between the developed and developing worlds remain stark.
There has been a convergence in the number of pupils enrolling in primary school, with many more young children in developing countries now having access to school.
But when it comes to average levels of attainment - how much children have learnt and how long they have spent in school - there remains a massive gap.
When it's shown as an average number of years in school and levels of achievement, the developing world is about 100 years behind developing countries. These poorer countries still have average levels of education in the 21st Century that were achieved in many western countries by the early decades of the 20th Century.
When it comes to education the differences between the developed and developing worlds remain stark.
There has been a convergence in the number of pupils enrolling in primary school, with many more young children in developing countries now having access to school.
But when it comes to average levels of attainment - how much children have learnt and how long they have spent in school - there remains a massive gap.
When it's shown as an average number of years in school and levels of achievement, the developing world is about 100 years behind developing countries. These poorer countries still have average levels of education in the 21st Century that were achieved in many western countries by the early decades of the 20th Century.