Researchers began decoding the glyphic language of the ancient Maya long ago, but the Internet is helping them finish the job and write the history of the enigmatic Mesoamerican civilization.

For centuries, scholars understood little about Maya script beyond its elegant astronomical calculations and calendar. The Maya dominated much of Central America and southern Mexico for 1,000 years before their civilization collapsed about 600 years before the Spaniards reached the New World.

The Maya script began to give up its secrets in the 1950s and '60s, and progress accelerated in the 1970s. But much remains to be puzzled out from the immense body of carvings and inscriptions that has languished for centuries in jungle ruins and museum closets.