The term "Olmec" referred to:

The Olmec in its simplest term means the "RUBBER PEOPLE" who are found along the west of YUCATAN PENINSULA

Explanation:

These are the people who brought or started the rubber idea in the Nahuatl. These sets of people resided in the western areas of the Yucatan Peninsula. The Olmec people have never in any way portray their rulers in stones.

However, it must be noted that the Olmec civilization has existed before the Aztec and Mayans civilization era.

However, it must be note that the Olmec the civilization that existed before the Aztec and Mayans civilization era.