In what order did the major Mesoamerican groups exist, from first to last?

The correct sequence of major Mesoamerican groups, from first to last, is indeed Mayans, Aztecs, and Incas. The Mayans were one of the earliest civilizations in Mesoamerica, flourishing from around 250 to 900 CE, known for their advanced writing system, impressive architecture, and mathematical and astronomical systems. They developed complex city-states and a vibrant culture long before the Aztecs and Incas emerged.

The Aztecs rose to prominence later, around the 14th century, establishing a vast empire centered in what is now Mexico City. They are known for their rich mythology, significant agricultural practices, and architectural feats, including the construction of large temple complexes.

The Incas, while a significant civilization in South America, precisely in the Andes region, were contemporaneous with the later stages of both the Mayan and Aztec civilizations but were not located in Mesoamerica. Their empire reached its height in the 15th century, with notable advancements in agriculture, engineering, and governance.

Thus, the order of these groups reflects their historical timelines and geographic locations, with the Mayans preceding the Aztecs and the Incas being a notable civilization elsewhere in the Americas.