Gold bar found in Mexico was from Aztec treasure: Study

A new study has claimed that the gold bar found in a Mexico City park in 1981 was part of the Aztec treasure looted by Hernan Cortes and the Spanish conquistadors 500 years ago. The 1.93-kilogram bar, confirmed to be part of the treasure through the use of specialised X-rays, was found by a construction worker during excavations.