Answer:
1) Established a moral code
Explanation:
They all did that
2)Gupta Empire
Explanation:
India had much advanced knowledge in the fields of mathematics, astronomy, and medicine during this period in comparison to any other country in the world.
During the Gupta empire—from about 320 to 550 CE—emperors used Hinduism as a unifying religion and helped popularize it by promoting educational systems that included Hindu teachings; they also gave land to brahmins. The Gupta emperors helped make Hinduism the most popular religion on the Indian subcontinent.
