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Weegy: Some unique characteristics of the Mayan civilization were: developing the science of astronomy, calendar systems, and hieroglyphic writing.

The unique characteristics of the Mayan civilization compared to other American civilization were  pyramid-building, city construction and the inscribing of stone monuments. The Late Pre classic city of Mirador, in the northern Petén, was one of the greatest cities ever built in the pre-Columbian Americas.

What was the Mayan civilization?

The Maya civilization was a Mesoamerican civilization developed by the Maya peoples, and noted for its logo syllabic script—the most sophisticated and highly developed writing system in pre-Columbian Americas—as well as for its art, architecture, mathematics, calendar, and astronomical system.

"Maya" is a modern term used to refer collectively to the various peoples that inhabited this area. They did not call themselves "Maya" and did not have a sense of common identity or political unity.

Today, their descendants, known collectively as the Maya, number well over 6 million individuals, speak more than twenty-eight surviving Mayan languages, and reside in nearly the same area as their ancestors.

What was El Mirador?

El Mirador is a large pre-Columbian Maya settlement, located in the north of the modern department of El Petén, Guatemala.

El Mirador flourished from about the 6th century BCE to the 1st century CE, reaching its height from the 3rd century BCE. One of the key elements for this tremendous rise in human population was the many bajos, seasonal swamps, in the region.

There are a number of "triadic" structures (around 35 structures), consisting of large artificial platforms topped with a set of 3 summit pyramids.

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