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Crocodile Hearts
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Alien Invasions
Finding the Past
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Traces of Ancient Campfires
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
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Sweet, Sticky Science
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A Satellite of Your Own
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Oldest Writing in the New World

You don't normally expect anything exciting to happen while building a road. But, several years ago, road builders in southern Mexico found a large stone slab covered with marks. Scientists have now concluded that these signs may be the oldest evidence of writing ever found in the Americas. Road workers discovered the stone in 1999 while digging in a gravel pit near Veracruz. This area of Mexico was at the center of the ancient Olmec civilization. Scientists who have studied the rock, known as the Cascajal block, say that it displays an early form of Olmec writing, dating back nearly 3,000 years. Scientists had previously found samples of Olmec writing from 2,650 years ago. The new block is older and clearly shows writing, says Stephen D. Houston of Brown University in Providence, R.I. One side of the stone block is covered with 62 carved signs. Twenty-eight of these signs are distinctive elements, similar to individual letters, that might represent things like corn, eyes, or animal skin. The signs run across the block, just as words run across a page. Scientists aren't sure exactly what the symbols mean, and they don't know whether the writing system had any basic rules or grammar. This type of writing might have spread across southern Mexico, says Houston. Wooden figurines found at other Olmec sites have a few similar signs carved in the backs of their heads. Some scientists aren't sure that the stone bears evidence of writing. The signs on the stone, for example, appear to run horizontally, whereas later writing in the region ran vertically. Houston, however, suspects that other blocks with writing exist in the area. He and his team plan new excavations near the quarry where the original stone was found.—E. Jaffe

Oldest Writing in the New World
Oldest Writing in the New World

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