Recently, he studied the mutual dependence of Mayan civilization and its ecology.

Maya blue was a pigment widely used by the Mayan civilization.

With those tools they wiped out most of Mayan civilization.

He was also noted for his research into early Mayan civilization.

Guatemala was once at the heart of the mysterious Mayan civilisation.

The decline of Mayan civilization is still not fully explained.

"What's your theory as to why the Mayan civilization ended?"

The stage was set for the flowering of classic Mayan civilization.

Their relatives can be found in the same areas the Mayan civilization used to live in.

The ancient city was a major one of the Mayan civilization, which developed during the Classic period.