Olmec Civilization

The first traces of Olmec civilization were from 1400 BC. In San Lorenzo, one of the three main centers of Olmecs with Tenochtitlan and Potrero Nuevo. Having resided in the tropical area of Mexico, Olmec is an evil group tending to support human sacrifices and blood. Although evil, they also tried to invent a writing language, which is likely to have been before the Phoenicians. They tried to determine the number "0", a breakthrough concept in math at that time. The foundation of almost all Mesoamerican cultures is natural disasters or maybe their own reckless agricultural forms that have destroyed them.

During the period of the Olmec civilization, Olmecs were master manufacturers. People find in these places the big monuments of giant stone heads. This civilization laid the foundation for all Mesoamerican cultures later. It is believed that the Olmecs are the first to develop the writing system, they may have invented the compass and Mesoamerican calendar. They know the use of blood, the sacrifice of people, and inventing the concept of zero. This civilization has not been discovered by historians until the middle of the 19th century. Climate change is caused by volcanic and earthquake eruptions or may be caused by harmful agricultural activities. This is the mysterious lost civilization that once existed.

• Time: 1400 BC
• Location: Mexico