LATE ROMAN EMPIRE:

DIOCLETIAN’S REORGANIZATION OF EMPIRE: TETRARCHY
Motive: military defense of frontiers & orderly succession

Four rulers:
two Augusti (Diocletian = Senior Augustus) & two Caesars (successors)

Four Prefectures and their capitals: 

       GAUL             ITALY            ILLYRICUM         ASIA

Capitals:                   |                        |                       |

        Trier             Milan             Sirmium           Nicomedia
                                              (near Belgrade)      (on Bosphorus Straits
                                                                             near Byzantium)

Rulers:         West                                        East
                                                      Senior
     Caesar            Augustus            Augustus          Caesar
Constantius         Maximian          Diocletian        Maximianus
            |                   |   (abdicate in 305 AD)
          Son             Son
            |                   |
    Constantine     Maxentius

305 Abdication of Diocletian and Maximian; their Caesars become Augusti
    New Caesars chosen: Italy: Flavius Valerius Severus (under Constantius)
        Illyricum: Galerius Valerius Maximinus Daia (under Maximianus)

306 -  312 battle for succesion among all of the above, except Diocletian;
  plus  addition of Licinus in 308

312 Constantine invades Italy:
      defeats and kills Maxentius at Battle of Milvian Bridge
313 Licinius consolidates military hold on East by defeating Daia (who dies)
314 truce between Constantine & Licinius in East
323 Battle of Adrianople: defeat of Licinius by Constantine
324 Constantine sole Emperor in East & West

325 Council of Nicea:
       1st ecumenical (world-wide) council of Christian Church

      called by Constantine acting as head of church
      CAESAROPAPISM: Caesar acts as Pope, fusion of Church and State
      council condemns as heresy the explanation of Trinity taught by the
ARIANS, who hold that Christ as son is lesser being than Father;
      orthodox definition of Trinity stated in Nicene Creed:
      Son is of “same substance” with the Father (homo-ousia)

INVASIONS OF 4TH - 5TH C.  AND   FALL OF ROMAN EMPIRE IN WEST 

German Tribal Structure: Tacitus Germania (lst C. AD)
   Economics: hunting, grazing, not settled agriculture
   Politics: COMITATUS war band, followers of warlord king;
             personal loyalty to (elected) king as strongest bond
             (vs Roman "state")
   Social: distinctions between nobles, freemen, slaves

Roman Influence on Germans:  military tactics & service;
      political org: 4th C. first tribal confederations:
      e.g. Alemanni = "all men"; "Franks" = freemen

Pressure on German tribal confederations allied with Rome:
Asiatic migrations: begin in 4th C, end l5th C; nomadic horsemen;
                   first = Huns; Bulgars, Mongols; last = Magyars

FIFTH C. INVASIONS:  Visigoths, Alaric, Vandals, Huns

390 Christianity made official religion by Emperor Theodosius,
       pagan sacrifice prohibited, including in city of Rome

410 AD SACK OF ROME BY ALARIC / VISIGOTHS

AUGUSTINE AND CHRISTIAN WORLD VIEW

Autobiography = Confessions: mother Monica; Bishop Ambrose of Milan;
        Carthage;conversion; theologian & Bishop of Hippo; Church Father

Refutation of 4-5th C. Heresies:
1. Manicheanism: dualism as explanation for evil; omnipotence of God
          vs goodness of God; Aug: theory of evil as absence of good
2. Pelagianism: salvation through effort, good works = morality
        Augustine: original sin as totally corrupting, need grace

CITY OF GOD (vs City of man): Christian theory of history;
Roman versus Christian explanation sack of Rome in 4l0 AD:
      Roman: abandonment of worship of official Roman gods;
      Christian: political realm as punishment for original sin
            heavenly city versus earthly city; divine Providence 

OSTROGOTHIC KINGDOM (493-535):
first of "barbarian" or successor kingdoms

THEODORIC (493-526) King of the Ostrogoths (= Eastern Goths, Arians)
            authorized by Eastern Roman Emperor to march against Huns in Italy; 
            Theodoric slays Odoacer;  accepted by Senate & People of Rome (SPQR)
            Arianism as major weakness of Ostrogothic Kingdom:
      Byzantine Emperor remains hostile to Arian heresy     

EMPEROR JUSTINIAN (527-565) Wars against Persia, Vandals, Goths

The Reconquest of Italy  (Greek historian PROCOPIUS)
    attacks Vandal Kingdom in Africa to regain Mediterranean;
    then disastrous, 20 year long Italian campaign: 535-554
    Gothic resistance led by Totila, enters Rome in 542;
Justinian's wars as beginning of "Dark Ages" in Italy,
   Imperial reunification short lived, Italy invaded again

Codification of Roman Law: most important legacy of East
   438 Theodosian Code: first attempt at codification
   529 JUSTINIAN'S CODE (CORPUS IURIS CIVILIS) in 2 vols;
      result is influence of Roman law on barbarian legal
      codes & canon (church) law in medieval western Europe

Lombard Kingdom 568-774: military victory due to exhaustion
of Roman Italy, plague, famine, following J's wars

DOCTRINE OF PAPAL PRIMACY IN ROME

East: CAESAROPAPISM -- "Caesar acts as Pope"
      pattern set by Constantine; Church as department of state
      Emperor calls church councils, decides doctrinal disputes

West: Roman church resists Imperial control from the East
      evolve doctrine of papal primacy within Church
      Pope as primus inter pares (first among equals
                  among Christian Bishops)
APOSTOLIC SUCCESSION from Peter
      (gatekeeper holds "keys of kingdom")
Scriptural foundation of Peter's authority: Matt l6:l8=
      "Thou art Peter & upon this rock I will build my church."
      body in Vatican: relic, pilgrimage site;
      pallium (symbol of Papal authority) placed on tomb
                   of St. Peter by each newly chosen pope

DONATION OF CONSTANTINE:
letter of Constantine to Pope Silvester I, dated 3l5:
    Imperial power in Rome & Western provinces of Empire granted to Pope;      
    becomes "official" basis for claims of secular power by Pope -
    probably 8th C forgery (circa 750, modeled on actual "Donation of Pepin")

POPE GREGORY THE GREAT: "Father of Medieval Papacy" (540-604)
     noble Roman family; lives through Justinian's Gothic wars, Lombard invasion;      
               abandons job as prefect of City of Rome to enter monastery;
              made ambassador to  Imperial court in Constantinople;
      reign 590-604: directs civil administration of Rome: food supplies,
      military defense, courts; church revenues for hospitals, schools
      missionary activities for northern Europe, England: missionary
      597 Augustine to Anglo-Saxons (not same as Augustine of Hippo)
      writings: Miracles of Italian Fathers, saints' lives, eg St. Benedict, miracle stories;      

MONASTICISM AND THE RULE OF ST. BENEDICT as response to decline of Rome

East: St. Anthony (3rd C. Egypt): model of withdrawal to desert cave to
      seek holiness through poverty, chastity, fasting, renunciation of world

ST. BENEDICT OF NURSIA (480-547)   founder of western monasticism
529 founds Abbey of Monte Cassino (near Naples)