Portable Network Graphics. Portable Network Graphics (PNG /ËpÉªÅ/) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most widely used lossless image compression format on the Internet.
The slavery in the United States was a paradox because it contradicted the American ideal of freedom C. Slavery is one the black chapters in mankind history. It shows barbarian, immorality and misunderstanding.
In Engerman and Sokoloffâs narrative, slavery led to inequality, which led to economic underdevelopment. But when Nunn examined levels of inequality in 1860âas measured by holdings of landâthese proved a poor predictor of future problems. Only the presence of slavery was a harbinger of problems. âIt is not economic inequality that caused the subsequent development of poor institutions,â wrote Nunn.