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.
Note: There are many who say that the economics of slavery were not very profitable, Thomas Sowell notably, and I would say they are wrong. However, it is important to distinguish (as I will attempt) between plantation slavery economics and the greater commerce value/impact of the triangular trade.