Persecution hostility and ill-treatment, especially because of race or political or religious beliefs. The Way The idea of the “path of Christ”- a specific dogma to live by to be in communion with Christ. Martyr One who dies for the faith. Nero Exceptionally cruel Roman emperor, who martyred 8 of Christ’s apostles and launched Rome into cataclysmic turmoil. Diocletian Roman emperor appointed after a failed Persian crusade, who initiated the edicts allowing Christianity to exist within the empire Constantine Roman emperor, who, after a conversion event, legalized and made Christianity the official religion of the empire. Battle of the Milvian Bridge (or Saxa Rubra) battle where Constantine saw a flaming cross in the sky and converted Chi-Rho a monogram of chi (Χ) and rho (Ρ) as the first two letters of Greek Khristos Christ, used as a Christian symbol. Edict of Milan a letter signed by the Roman emperors Constantine and Licinius, that proclaimed religious toleration in the Roman Empire. Theodosius I last emperor to rule over both the Eastern and the Western halves of the Roman Empire. On accepting his elevation, he campaigned against Goths and other barbarians who had invaded the Empire.