Why did southerners argue states' rights were violated by abolition of slavery?

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.

Where were the trials to review evidence in cases against high-ranking nazi officials accused of war crimes held?

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