The Mayan Civilization qualifies as such.
There were really no established 'countries' in the area that long ago, but the area today would be eastern Mexico.
The astecs lived in the Mesoamerican region in the current Mexico.
The Olmec, they were the fathers of the mesoamerican culture.
The Aztecs settled in the Valley of Mexico and established their capital city, Tenochtitlan, on an island in Lake Texcoco. They also built other cities and towns throughout the valley, forming a network of interconnected communities. These settlements were connected by causeways, canals, and trade routes.
The Aztecs settled in the valley of Mexico
Mexico is in the Eastern Hemisphere.
They spoke Spanish, before and after they settled into Mexico.
Mexico is a mix of cultures, being the most important the Spanish and Mesoamerican cultures such as Maya and Aztec. As for the Spanish culture, it includes the language (Spanish), religion (Roman Catholicism) and several traits and traditions brought into the society when Mexico became part of the Spanish empire. One such example is bullfighting.
The Aztec civilization
The Aztec civilization.
Tenochtitlan, capital of the Aztec civilization.
There are many airports in south eastern Mexico