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.
Many people think that the Emancipation Proclamation resulted in the total abolition of slavery. While the Emancipation Proclamation did free some slaves, the 13th Amendment called for the total abolition of slavery. It was the primary piece of legislation that permanently ended the institution of slavery in the United States, and it was passed in 1865.