Final answer:
The grandeur of Teotihuacan is supported by its advanced infrastructure, impressive architecture including the Pyramid of the Sun and Moon, and the discovery of rich cultural artifacts and art that denote a religious and polytheistic population.
Step-by-step explanation:
Facts Supporting the Grandeur of Teotihuacan
The grandeur of Teotihuacan Can be substantiated by several historical facts. Firstly, Teotihuacan had very advanced infrastructure, with large-scale agriculture facilitating an abundance of food. This technological advancement allowed for specialization in trades beyond farming. The city's architecture also supports its grandeur, with impressive structures such as the Pyramid of the Sun and the Pyramid of the Moon, as well as over 2,200 apartment compounds for families and numerous temples.
Additionally, beautiful art and artifacts have been found in Teotihuacan, indicating a rich cultural and religious life. The population was indeed religious and polytheistic, with evidence of human sacrifice for religious purposes being uncovered. While it is not factual to say that 'all roads led to Teotihuacan,' it was certainly a major center for trade, dealing in goods such as obsidian tools, cloth, ceramics, and artwork, which further attests to its significance in Mesoamerica.