December 2, 1961 (October 25, 1901), Mexican archaeologists completed excavations of Aztec pyramids. In In 1961, the Mexican archaeologists completed excavations of Tenochtitlan, the Aztec pyramid. The more than 800 years ago to build the pyramids well preserved, scale equivalent to Dart Oti Hom ancient city famous Pyramid of the Sun tenth. (History. Cn)