Nagarjuna relies on a form of argument which is based heavily on 1. dharmas
2. catuskoti
3. belief
4. Poetry

2. Catuṣkoṭi

Explanation:

Nagarjuna was an Indian thinker and a Buddhist philosopher who founded the Madhyamaka school of Mahayana Buddhism. He was born to a family of the Brahmin class in Hinduism but later on, he became a Buddhist.

He relied on the logical argument called "Catuṣkoṭi," which tackled on 4 corners or circles:

It became a way of learning and investigating. It also had a huge impact on the Buddhist logic.

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.