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.
At the heart of the institution of slavery was the TRIANGULAR TRADE. This trade started with ships being loaded in Bristol or Liverpool with goods such as salt, cloth, weapons, hardware, beads and rum. These ships, known as slavers, would then sail south to the west coast of Africa, to modern day Sierra Leone, Senegal and Nigeria.