February 27, 280 Constantine I (The Great) was born. He was Roman emperor from AD 306-337 and made Christianity the religion of the empire. 380 Roman emperor Theodosius declared the orthodoxy of the Nicene Creed. 1560, The Treaty of Berwick, which would expel the French from Scotland, was signed by England and the Congregation of Scotland. 1594 Henry IV was crowned King of France.