Arianism is the religion who forcefully and confidently believed that Jesus Christ is a son of God and who is begotten by God. The teachings of Arianism was first taught to Arius, a Christian man in Egypt in AD 256- 336. As per Arius, the God the Father and the Son of God do not come always together.
A democracy works under meeting and exercise the government in person, while a republic is the meeting and agreements of the citizens. They assemble and administrate to keep the discussion civil.
