The Aztecs were known for their agricultural influence in farming. They mostly grew crops such as corn, and their diet was dominated by fruits and vegetables.
Death camps and work camps I think
gunpowder
The invention of gunpowder.
This period is also known as the medieval period and is known for the various discoveries and inventions made during this age.
Well the South remember seceded completely, meaning they weren't part of the United States at all. Reconstruction allowed them back in, along with help from the 10% plan. The plan allowed the states and their governments back in as long as 10% of the population swore allegiance to the Union.