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.
Answer: Increased the number of people who have healthcare.
Medicare is a federal program that provides health insurance for people over the age of 65 or for who are disabled and don't have an income.
Medicaid is a federal and state program that provides health coverage to the group of people who have low income. Both Medicare and Medicaid have increased the number of people who have health care since 1960.
A feminist is best described as someone who believes in equal rights for everyone.