WORLD RELIGIONS

Detailed explanation-1: -In 380 CE, the emperor Theodosius issued the Edict of Thessalonica, which made Christianity, specifically Nicene Christianity, the official religion of the Roman Empire.

Detailed explanation-2: -On February 27, 380, in Thessaloniki, the Eastern Roman Emperor Theodosius I (347-395) signed a decree in the presence of the Western Roman Emperor Valentinian II (371-392) that made Christianity the religion of the state and punished the practice of pagan rituals.

Detailed explanation-3: -Constantine made Christianity the main religion of Rome, and created Constantinople, which became the most powerful city in the world.

Detailed explanation-4: -Christianity began as a Second Temple Judaic sect in the 1st century in the Roman province of Judea, from where it spread throughout and beyond the Roman Empire.