What was an achievement of the Aztec?

Utilizing a well developed writing system
Developing the numeral zero
The use of an aqueduct
Developing the first calendar

1 answer

One significant achievement of the Aztecs was the use of an aqueduct. They developed advanced engineering techniques to transport fresh water from springs to their capital city, Tenochtitlán, which was built on an island in the middle of Lake Texcoco. This aqueduct system was crucial for sustaining the large population of the city and supporting agriculture. While the Aztecs did have a form of writing and developed a calendar system, the creation of an aqueduct is a standout achievement in terms of their infrastructure and innovation.