Answer:
Nicholas Copernicus was the Astronomer who first placed the sun at the center
When Jesus said "love your neighbor as yourself," his message was that you should treat people how you want to be treated. In other words don't steal if you don't want to be stolen from.
I believe the answer is:
- Pure mathematics
Proven by the difference in knowledge on astronomy between aztec culture and the Castillian.
- Urban architecture
Proven by the superior irrigation system that Aztec civilization had compared to Castilian civilization at that time.
The north and the south where divided in many ways one of the more common known being the north was really against slavery another was actually taxes which caused the south to threaten succession and another was the election of Abraham Lincoln and so on
