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.
Northern states ended slavery within their own borders because slavery is an inefficient system in a climate where winter is long and thereâs no agriculture to keep slaves busy. Therefore, unlike their Southern cousins, Northerners didnât grow up in a society where all labor was done by slaves.