Final answer:
The Olmec, Maya, and Aztec were ancient Mesoamerican civilizations that shared various similarities, such as hieroglyphic writing and complex calendar systems.
Step-by-step explanation:
The Olmec, Maya, and Aztec were ancient Mesoamerican civilizations. They shared several similarities, including the use of hieroglyphic writing and complex calendar systems. The Olmec, considered a "mother culture," influenced later Mesoamerican states through trade and cultural diffusion. Cultural similarities, such as ritual ball games, deities, and calendar systems, can be observed among these civilizations.