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.
The Olmec: The Olmec were the first great Mesoamerican civilization. They thrived along Mexicoâs gulf coast, mainly in the present-day states of Veracruz and Tabasco, from about 1200 to 400 B.C., although there were pre-Olmec societies before that and post-Olmec (or Epi-Olmec) societies afterwards.wo major Olmec cities are known to researchers: San Lorenzo and La Venta. These are not the names the Olmec knew them by: their original names have been lost to time. San Lorenzo thrived from approximately 1200-900 B.C. and it was the greatest city in Mesoamerica at the time.