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.
By the eighteenth century, slavery had become the root metaphor of Western political philosophy, connoting everything that was evil about power relations. Freedom, its conceptual antithesis, was considered by Enlightenment thinkers as the highest and universal political value.