Oldest yet modern native American tribe in Mexico?

The Mexica, also known as the Aztecs, are considered to be the oldest yet modern Native American tribe in Mexico. Their origins can be traced back to the 12th century when they settled in the Valley of Mexico and established the city of Tenochtitlan, which became the capital of their vast empire. The Mexica had a highly advanced civilization with sophisticated social, political, and religious systems. They were also renowned for their art, architecture, and scientific knowledge. Despite the Spanish conquest in the 16th century, the Mexica have managed to preserve their cultural heritage and identity, and today they continue to be one of the largest and most influential indigenous groups in Mexico.