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.
Slaves had no rights because back when they were around, they weren't considered human, but something below human to justify their slavery. Slaves were considered to be like h â¦ orses and dogs, those don't have rights have either so why would slaves.3 people found this useful.laves had no rights because back when they were around, they weren't considered human, but something below human to justify their slavery. Slaves were considered to be like h â¦ orses and dogs, those don't have rights have either so why would slaves. 3 people found this useful.