Scientists have been waiting on technological advancements in order to confirm the date of the gold bar.
He explained that researchers used fluorescent X-ray equipment to analyze the gold bar’s chemical composition and match it with other historical pieces discovered in the same area.
The 4.35 pounds gold bar was found in May of 1981 in a construction site of what is now Mexico’s Tax Revenue Service offices near Mexico City’s historic downtown. A worker found the bar buried about 15.7 feet deep and gave it to a team of archaeologists.
Luján said the gold bar is at the National Museum of Anthropology and serves as “key material witness of the Spanish conquest and archaeological testimony of the ‘Noche Triste’.”
The “Noche Triste” or “Sad Night” is a battle where Cortés tried to flee Tenochtitlan quietly on June 30, 1520, the night after Spaniards massacred Aztec leaders. The Aztecs learned of their plan and attacked. Some of the gold from Moctezuma’s treasure was lost in the battle.
The area where the gold bar was found is believed to be the location of an ancient canal that Cortés and his troops used to try to escape.
The bar will remain at the museum for visitors to view.
