upward mobility maps (IMAGE) PNAS Nexus Caption Maps of intergenerational mobility, early and late 20th century. The top map shows estimates of average adult personal income attainment of children born into households at 25th percentile of the national income distribution for the birth cohorts from 1904 to 1916 where income attainment is observed in 1950. The bottom map shows estimated average adult personal income attainment of children born into households at 25th percentile of the national income distribution for the birth cohorts from 1978 to 1983, where income attainment is observed in 2014-2015. Darker (blue) colors indicate childhood locations that are associated with higher income attainment among children from poorer backgrounds while lighter (yellow) colors show lower levels of upward income mobility. Credit Connor et al. Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.