America's longest-serving prisoner in solitary has conviction quashed. Albert Woodfox, right, and Herman Wallace in Angola prison, in Louisiana. Woodfoxâs 1972 murder conviction was overturned when a US appeals court ruled his conviction was secured through racially discriminatory means.
Next, the Olmec created a complex drainage system. These inventions helped the Olmec survive. In addition to their inventions, they also understood many things in life, such as the concept of zero ,linear time, and gravity.
Olmec's location contributed to the development of their civilization because they were near water for fertile soil and easy transportation, next to the rainforest for wood and rubber, and had an abundance of salt, tar and clay to make sculptures to trade with other kingdoms.