Which accomplishment of some early american civilizations indicates that they had knowledge of astronomy?

How does the constitution limit the power of the federal government

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a.creating terraces for farm fieldsb.practicing religious ceremoniesc.playing a ball game with stone hoopsd.protecting a city from invading armies

What types of subjects did public high schools in the 1900s emphasize and why