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.
Attempts to justify slavery. Virtually everyone agrees that slavery is inhumane and degrading and wrong, but since for much of history many people defended it, it's important to demonstrate why it's wrong. Trying to justify slavery. A number of arguments have been put forward to try and justify slavery.