Question

the incas were the first early american civilization to create
roads to connect different parts of their empire.
stone carvings that showed images of their rulers.
an urban area with a system of canals.
a calendar based on a solar year of 365 days.

Explanation:

• Early American civilizations had distinct innovations: the Maya created a 365-day solar calendar, the Aztecs built Tenochtitlan with canal systems, and multiple cultures made ruler carvings. The Incas are uniquely known for their extensive road network connecting their vast empire.

Answer:

roads to connect different parts of their empire.