In 1870, the average length of schooling was just 0.5 years. In 2010 that figure stood at 8.5 years and by 2040, it is predicted to be 10.5 years.

In 1870, the average length of schooling was just 0.5 years. In 2010 that figure stood at 8.5 years and by 2040, it is predicted to be 10.5 years. https://t.co/0Uv28WG9sA

— HumanProgress.org (@HumanProgress) June 1, 2019