History: Mesoamerican Civilizations

What mathematical concept did the Maya independently develop that allowed for complex astronomical calculations and place-value notation?

The concept of zero.

What was the capital city of the Aztec Empire, built on an island in Lake Texcoco?

Tenochtitlan.

What was the name of the knotted-string device used by the Inca for record-keeping and accounting?

Quipu.

Which Spanish conquistador led the expedition that resulted in the fall of the Aztec Empire in 1521?

Hernán Cortés.

What was the administrative and spiritual heart of the Inca Empire, known as the 'Navel of the World'?

Cusco.

What innovative agricultural method did the Aztecs use to grow crops on shallow lake beds?

Chinampas.

Unlike the centralized Aztec or Inca empires, how was the Maya civilization politically organized during its Classic period?

It consisted of independent city-states (like Tikal and Palenque) often at war with each other.

What was the primary religious significance of human sacrifice in Aztec culture regarding their sun god, Huitzilopochtli?

It was believed to provide the sun with the 'sacred water' (blood) needed to rise each day and prevent the end of the world.

How did the Inca road system (Qhapaq Ñan) contribute to the stability of the empire?

It facilitated rapid military movement, communication via runners (chasquis), and the transport of goods across diverse terrain.

What environmental adaptation allowed the Inca to successfully farm on the steep slopes of the Andes Mountains?

Terrace farming.