Which concept did the maya understand before Europeans?

The Maya understood various concepts and fields before Europeans, including:

1. Mathematics: The Maya developed a sophisticated mathematical system, including the concept of zero, which was not introduced in Europe until much later. They also used a vigesimal (base-20) numbering system and had advanced knowledge of geometry.

2. Astronomy: The Maya had an extensive understanding of astronomy, tracking celestial bodies and developing accurate calendars. They were able to predict astronomical events such as eclipses and understood the cyclical nature of celestial movements long before Europeans.

3. Writing and Language: The Maya developed a complex hieroglyphic writing system that was used to record historical events, rituals, and astronomical observations. It was among the few fully developed writing systems in the ancient Americas.

4. Agriculture and Environmental Sustainability: The Maya practiced advanced agricultural techniques, including terracing, irrigation, and agroforestry, which allowed them to sustain large populations. They also had a deep understanding of the environment and used various methods to manage and conserve natural resources.

5. Architecture and Engineering: The Maya constructed impressive architectural structures, including pyramids, temples, and palaces, using advanced engineering principles. They had a deep understanding of mathematics, astronomy, and acoustics, which influenced their building designs.

It is important to note that the knowledge and advancements of the Maya were developed independently in Mesoamerica and were not influenced by European civilizations.