Amazon Civilization Before Columbus. John Roach for National Geographic News January 4, 2010 Hundreds of circles, squares, and other geometric shapes once hidden by forest hint at a previously unknown ancient society that flourished in the Amazon, a new study says.
Satellite images of the upper Amazon Basin taken since 1999 have revealed more than 200 geometric earthworks spanning a distance greater than 155 miles (250 kilometers). Smart urban stage. Special Reports / The Future of Cities. Research of Record. Race, Ethnicity, Gender. Urban Institute researchers examine gender inequalities, racial segregation, and the mutually reinforcing disparities they cause in education, housing, employment, income, and health care.
Our experts analyze race and gender gaps in student test scores, measure unequal treatment toward minorities in the housing market, and study the persistent discrimination that feeds wealth and income gaps. We also probe the unique challenges of single mothers, noncustodial fathers, and hard-to-employ young men—and evaluate the public and private programs designed to help them. Featured Links.