The Aztec Calendar - 1 oz .999 Pure Copper Round Bullion Coin celebrates the incredible historical and cultural significance of the Aztec civilization. Meticulously crafted, it bears an intricately detailed design of the Aztec calendar - a complex system that the Aztecs used to track days, time, and the spiritual or religious significance of each period. The Aztec calendar, a unique 52-year cycle of 365 days, composed of 18 20-day cycles aligning with another 260-day rotation of a 13-day cycle, is a fascinating marvel of history. Every year, day, and period was given a unique name and number identification, like "7 rabbit 1 wind 7 reed", with each governed by a specific deity. This copper round is minted from 1 AVDP ounce of .999 pure copper, providing an asset of real, tangible value. For the preservation of its striking luster and intricate design, the coin is securely encapsulated. Each round includes a Certificate of Authenticity from Heavenly Metals, guaranteeing its 99.9% copper purity and origin. This stunning copper round is a perfect gift for enthusiasts of historical and cultural artifacts, collectors, and anyone with an interest in the Aztec civilization. Its rich historical significance combined with its beautiful, intricate design, makes it a must-have addition to any collection.