This chapter, by using numerical estimates based mainly on the latest Barro-Lee data set (Barro and Lee, 2016), tries to investigate educational attainment progress across major regions in the world, and over the time period of 1950 to 2010. We also investigate what has been achieved during this period, with reference to the educational attainment gender gaps, and age differences in different regions. As the quality of education matters as well as the average years of schooling, discussions are also provided about how the quality side of educational attainment is practically taken into account.