33 A.D. - Jesus Crucified

33-100 A.D. (approx.) - Acts of the Apostles - Jesus' apostles spread the Gospel to India, Africa, Greece, Rome

33-300 A.D. - Age of the Martyrs - Nero and other Roman Emperors outlaw Christianity

312 - Constantine Triumphant - Emperor Constantine has dream of a cross leading his army to victory, declares Christianity the official religion of the Roman Empire

325 - Council of Nicaea - Constantine convenes, affirming the doctrine of the Holy Trinity

367 - Books of the Bible Finalized - Athanasius, Bishop of Alexandria, finalizes the 66 books of the Bible, confirmed by Council of Carthage in 397

397 - St. Augustine's "Confessions" - autobiography of Augustine, describes his conversion to Christianity, a model for Christian writers throughout Middle Ages

476 - Fall of the Roman Empire (Byzantine or Eastern Empire fell in 1453 to Ottoman Turks)

622 - Founding of Islam - Prophet Muhammad receives the Quran

732 - Stephen Martel defeats Muslims' invasion of France

800 - Charlemagne crowned Holy Roman Emperor

1054 - Schism between Eastern (Orthodox) and Western (Catholic) Churches begins - Greek and Latin churches excommunicate each other (rescinded in 1965)

1095 - First Crusade begins - Pope Urban II urges mostly French army to retake the Holy Land and Jerusalem in response to Muslim aggression

1224 - St. Francis's Vision

1273 - St. Thomas Aquinas' Vision

1457 - Gutenberg's First Bible - the invention of the printing press

1492 - Columbus Sails to New World

1517 - Martin Luther's 95 Theses - Protestant Reformation Begins when Luther, a Catholic Priest, publishes his papers outlining corruption of the Catholic Church

1536 - John Calvin's Geneva Reform - Calvinist Church and doctrine of Predestination

1541 - Bible published in English

1558 - Anglican Church begins - Henry VIII of England divorces Catherine of Aragon

1604 - King James Bible published

1615 - Galileo's heliocentric theory declared heresy

1620 - Mayflower reaches America - Puritans start Plymouth Bay Colony

1648 - Thirty Years' War ends - War between Protestants and Catholics

1681 - Founding of Pennsylvania - William Penn founds Quakers

1687 - Newton's Laws of Gravity published

1730 - The Great Awakening - Jonathan Edwards leads massive revival in American Colonies

1738 - John Wesley receives Holy Spirit - begins Methodist Church

1779 - John Newton publishes "Amazing Grace"

1783 - England recognizes the independence of the United States of America

1837 - Darwin's Theory of Evolution - leads to "Scopes Monkey Trial" (1925 court case where Tennessee law outlawing teaching of Evolution is overturned)

1879 - Tolstoy publishes "A Confession" - influenced Gandhi, E. Stanley Jones, Martin Luther King Jr.

1915 - Einstein's Theory of Relativity

1927 - Big Bang first theorized - Edwin Hubble observes stars and galaxies in motion, tracks their paths back to the origin of the Universe

1944 - C.S. Lewis publishes "Mere Christianity"

1962 - U.S. Bans Prayer in Public Schools