Church History · Reference · The Big Map

The Story So Far

A teaching map of everything you've learned — Eras 1–3, every figure and council in its place. Built to teach from. (Companion to the one-page Four Eras skeleton and the glossary.)

ERA 1
Early Church
c. 30 – 500
Who is God? Who is Jesus? The councils settle the Trinity & Christ.
ERA 2
Medieval Church
c. 500 – 1500
Who leads the church? Popes rise, monks preserve, the church splits.
ERA 3
Reformation
c. 1500 – 1650
How is a sinner saved? Where is authority? The West fractures.
ERA 4
Modern Church
c. 1650 – today
Wars → toleration → revivals, missions, global Christianity.
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The through-line in one sentence: first the church settled who God is (Era 1), then fought over who runs the church (Era 2), then split over how we're saved and who has authority (Era 3) — each era's unfinished business becoming the next era's fight.

1 · The Early Church

c. AD 30 – 500Who is God? Who is Jesus?
c. 30Pentecost — the church is born; the apostles spread the gospel.
c. 64–313Age of persecution under Rome — the church grows under pressure.
c. 270Antony of Egypt to the desert — the root of monasticism.
313Edict of Milan — Constantine legalizes Christianity.
325Council of Nicaea — Christ is homoousios (same being as the Father); rejects Arianism. The Nicene Creed.
381Council of Constantinople — affirms the Spirit's deity; the Cappadocians fix the Trinity's words; Arianism settled.
431Council of Ephesus — Christ is one person; Mary is Theotokos; rejects Nestorianism.
451Council of Chalcedon — Christ is one person in two natures (Leo's Tome); rejects Eutychianism. First lasting split: Oriental Orthodox.
476Fall of the Western Roman Empire — the vacuum the medieval church will fill.
The cast
Apostles · Arius & Athanasius (Nicaea) · the Cappadocian Fathers · Leo I (Tome) · Antony of Egypt.
The "ditches" they avoided
On God: Arianism (Jesus a creature) & Modalism (one God in masks). On Christ: Nestorianism (two persons) & Eutychianism (one blended nature).
The thread →: the councils answered who God and Christ are. But Rome had fallen — leaving wide open the next question: with no emperor in the West, who now leads the church?

2 · The Medieval Church

c. 500 – 1500Who leads the church?
Sub-periods: Early / "Dark Ages" (~500–1000) · High Middle Ages (~1000–1300) · Late Middle Ages (~1300–1500).
c. 530Benedict's Ruleora et labora; the blueprint for Western monasticism (Monte Cassino).
590–604Gregory I "the Great" — the first medieval pope; governs Rome, sends missionaries.
910Cluny founded — launches the great monastic reform movement.
1054The Great Schism — East (Orthodox) & West (Catholic) split, over the filioque + the papacy.
1077Canossa — Gregory VII vs. Henry IV (Investiture Controversy); pope over kings.
c. 1270Aquinas & scholasticism — faith seeking understanding; the medieval mind.
1309–77Avignon papacy — popes in France ("Babylonian Captivity"); authority discredited.
1378–1417Great Western Schism — two, then three rival popes. Catholics vs. Catholics.
1384 / 1415Wycliffe (d.1384) & Hus (burned 1415) — the "morning stars" challenge the doctrine.
1414–18Council of Constance — ends the Schism (one pope); burns Hus.
Two engines of the era
Power from the top: the papacy climbs (Leo → Gregory I → Gregory VII). Preservation from the ground: the monks copy, farm, evangelize, heal.
The recurring rhythm
Zeal → wealth → corruption → reform → zeal again. Seen in monasticism (Cluny, Cistercians) — and it's the Reformation in miniature.
The thread →: by 1500 the church's authority was cracked (rival popes) and its doctrine was being challenged (Wycliffe, Hus). The wall was ready. All it needed was a spark — and a stubborn enough monk.

3 · The Reformation

c. 1500 – 1650How are we saved? Where is authority?
1517Luther's 95 Theses (Wittenberg) — against the sale of indulgences. The printing press spreads them. The Reformation begins.
1521Diet of Worms — "Here I stand." Luther refuses to recant; excommunicated. The break is permanent.
1525→Anabaptists emerge — the "radical" reformation: believers' baptism, church free of the state.
1529Marburg Colloquy — Luther & Zwingli split over the Lord's Supper. First Protestant-vs-Protestant divide.
1534Church of England — Henry VIII breaks with Rome; the Anglican via media.
1536Calvin's Institutes — the great Reformed system (Geneva).
1540Jesuits founded (Ignatius of Loyola) — Rome's teachers & missionaries.
1545–63Council of Trent — the Catholic answer ("both/and") + real reform. The Counter-Reformation.
The four Protestant branches
Lutheran (Luther) · Reformed (Zwingli & Calvin) · Anabaptist (the radicals) · Anglican (Henry VIII). One root: faith / Scripture / grace alone.
"Alone" vs. "Both/and"
Protestant: Scripture / faith / grace alone. Rome (Trent): Scripture and tradition, faith and works, grace through the Church & sacraments.
The thread →: by 1600 Europe is locked — a Protestant north, a Catholic south, neither yielding. Conviction + power = the Wars of Religion, and out of their exhaustion a new idea: toleration. That is the doorway into Era 4.
The whole arc, from memory: Pentecost → persecuted church → councils define God & Christ (Nicaea–Chalcedon) → Rome falls → popes rise & monks preserve → East–West split (1054) → the papacy discredits itself (Avignon, the rival-popes Schism) → morning stars (Wycliffe, Hus) → Luther, 1517 → four Protestant branches → Rome answers (Trent) → a divided Europe at the edge of the modern world.
Era 1 — who is God?  →  Era 2 — who leads?  →  Era 3 — how are we saved?  →  Era 4 — how do we believe now? (next)