Archaeologists have unearthed the ruins of an 800-year-old Aztec pyramid in the heart of modern Mexico City. The ruins, which are approximately 36 feet high, stand on the former site of Tlatelolco, a center of political and religious power and the twin city of Tenochtitlan. The discovery indicates that the ancient city might be more than a century older than previously believed, reports Reuters.
"The timeline is going to need to be revised," an archaeologists said at the dig site yesterday. The pyramid could have been built as early as the 1100s, challenging the presumed 1325 foundation of Tlatelolco and Tenochtitlan. The dig also uncovered five skulls and a suite of rooms dating from the 15th century. Work on the site will continue next year.