The role of the united state in Vietnam war began after the world warII. US mission was to restrict the communist domination that was present in Vietnam government, this was because communism could easily spread to the Neighbouring countries which would result to a change in the balance of power throughout Southeast Asia.
The Olmec civilization used to create stone representations of human heads sculpted from large basalt boulders, these are called " Olmec colossal heads". The heads date from at least 900 BC and are a distinctive feature of the Olmec civilization of ancient Mesoamerica.
