LandScan presents global population distribution data available and represents an ambient population (average over 24 hours). Uses spatial data and imagery analysis technologies and a multi-variable dasymetric modeling approach to disaggregate census counts within an administrative boundary. Models are tailored to match the data conditions and geographical nature of each individual country and region
Over 10,000 full-text articles from key reference resources on African American and African history and culture. Includes over 2500 images, more than 450 primary sources with specially written commentaries, nearly 200 maps, and more than 150 charts and tables offering information on everything from demographics, government, and politics, to business and labor, education, and the arts.