96 moments

1. Born at Naissus

   0272-02-27 · Naissus, Moesia Superior (Niš, Serbia)

   Constantine was born inside the provincial city of Naissus, modern Niš. The day is recorded, while scholars have historically debated the birth year; 272 is the prevailing reconstruction.

2. Lives at Diocletian's court

   0293-01-01 · Nicomedia, Bithynia (İzmit, Turkey)

   After his father became a tetrarchic Caesar, Constantine went east and lived at Diocletian's imperial court, principally based at Nicomedia. The source establishes residence at Diocletian's court; 293 is the contextual starting year rather than a precisely recorded arrival date.

3. Campaigns on the Danube

   0296-01-01 · Middle Danube frontier, Roman Empire

   As a member of the eastern imperial court, Constantine campaigned against groups along the Danube frontier. The evidence identifies the Danube but not a particular fort or battlefield; coordinates are a representative point on the middle Danube.

4. Fights in Syria

   0297-01-01 · Roman Syria

   Constantine served under Diocletian during the Roman war against Persia in Syria. The source supports only the province-level location; coordinates represent central Roman Syria.

5. Campaigns in Mesopotamia

   0298-01-01 · Roman Mesopotamia

   Constantine fought under Galerius in Mesopotamia during the successful eastern campaign against Persia. Presence continued into 299, but no individual battlefield is established; coordinates are representative.

6. Returns to Nicomedia

   0303-01-01 · Nicomedia, Bithynia (İzmit, Turkey)

   Constantine returned from the eastern front and was at Nicomedia when the Great Persecution began. The return is dated to spring 303.

7. Arrives at Eboracum

   0305-01-01 · Eboracum (York, England, United Kingdom)

   Constantine crossed to Britain with Constantius and proceeded to the major military base at Eboracum. The journey occurred after the Bononia rendezvous in 305; no exact arrival day survives.

8. Campaigns beyond Hadrian's Wall

   0305-01-01 · Northern Britain beyond Hadrian's Wall, United Kingdom

   Constantine accompanied his father during campaigning against northern peoples beyond Hadrian's Wall. The campaign extended through summer and autumn and lacks a securely identified battlefield; coordinates are representative.

9. Rejoins his father at Bononia

   0305-01-01 · Bononia, Gaul (Boulogne-sur-Mer, France)

   After leaving Galerius's court, Constantine reached Bononia and joined his father before the expedition to Britain. The source dates his arrival before summer 305.

10. Establishes his court at Trier

    0306-01-01 · Augusta Treverorum (Trier, Germany)

    Constantine returned from Britain to Trier, which became his principal western residence and Rhine-frontier capital. The source places the return in autumn 306.

11. Proclaimed emperor at York

    0306-07-25 · Eboracum (York, England, United Kingdom)

    Following Constantius's death, the army at Eboracum acclaimed Constantine emperor, beginning his thirty-one-year reign.

12. Visits Britain as Caesar

    0307-01-01 · Britain, Roman Empire

    Numismatic adventus evidence records a further imperial visit to Britain during Constantine's early reign. The visit is inferred from an adventus coin issue and cannot be assigned to a specific British settlement.

13. Marries Fausta at Trier

    0307-09-01 · Augusta Treverorum (Trier, Germany)

    Constantine married Maximian's daughter Fausta at Trier and received renewed recognition as Augustus. The canonical article says summer 307; the scholarly itinerary places the ceremony approximately in September.

14. Bridges the Rhine at Cologne

    0308-01-01 · Colonia Agrippinensium (Cologne, Germany)

    During operations against the Bructeri, Constantine reached Cologne and constructed a bridge across the Rhine.

15. Captures Maximian at Massilia

    0310-07-01 · Massilia (Marseille, France)

    Constantine pursued Maximian to Massilia, where loyal inhabitants opened the gates and enabled the rebel's capture. The quote proves Constantine's entry contextually; the event is dated approximately to July.

16. Disembarks at Lugdunum

    0310-07-01 · Lugdunum (Lyon, France)

    Constantine descended the Saône and Rhône system during his pursuit of Maximian and landed at Lugdunum. The month is approximate.

17. Embarks at Cabillunum

    0310-07-01 · Cabillunum (Chalon-sur-Saône, France)

    Responding to Maximian's rebellion, Constantine reached Cabillunum and put his army aboard boats for a rapid southward movement. The month is approximate.

18. Returns to Trier after the rebellion

    0310-08-01 · Augusta Treverorum (Trier, Germany)

    After suppressing Maximian's revolt, Constantine was again at his Rhine capital of Trier. The quoted table is explicitly a list of Constantine's attested movements.

19. Visits Autun

    0311-01-01 · Augustodunum (Autun, France)

    Constantine visited Augustodunum, an important Gallic city that had benefited from his patronage. The itinerary dates the visit tentatively to spring 311.

20. Advances through Brescia

    0312-01-01 · Brixia (Brescia, Italy)

    Constantine moved from Milan to Brixia and dispersed the opposing force stationed nearby. The movement occurred after mid-summer.

21. Crosses the Cottian Alps

    0312-01-01 · Mont Cenis Pass, Cottian Alps, France–Italy border

    Constantine began his invasion of Italy by leading his field army across the Cottian Alps. The campaign began in spring 312; the exact crossing date is not recorded.

22. Enters Turin after victory

    0312-01-01 · Augusta Taurinorum (Turin, Italy)

    After defeating Maxentian cavalry outside Augusta Taurinorum, Constantine entered the city amid popular acclamation. Only the year is securely established.

23. Leads the siege of Verona

    0312-01-01 · Verona, Italy

    Constantine personally led operations at Verona, defeating the relieving army and compelling the city to surrender.

24. Resides at Milan

    0312-01-01 · Mediolanum (Milan, Italy)

    Milan welcomed Constantine after his early Italian victories; he rested there until the middle of summer.

25. Takes Segusium

    0312-01-01 · Segusium (Susa, Piedmont, Italy)

    At Segusium, Constantine personally directed the assault that opened his route into northern Italy. Only the year is secure.

26. Wins at the Milvian Bridge

    0312-10-28 · Milvian Bridge, Rome, Italy

    Constantine commanded the army that defeated Maxentius immediately north of Rome, a decisive victory in the western civil war. Coordinates mark the historic bridge and adjacent battlefield area.

27. Enters Rome in triumph

    0312-10-29 · Rome, Italy

    The day after defeating Maxentius, Constantine entered Rome in a ceremonial adventus and assumed control of the western capital.

28. Winters in Rome

    0312-12-01 · Rome, Italy

    Constantine remained in Rome for nearly two months after his victory, reorganizing the city and Maxentius's institutions. The residence extended from late October 312 into January 313.

29. Meets Licinius at Milan

    0313-02-01 · Mediolanum (Milan, Italy)

    Constantine met Licinius at Milan, cementing their alliance and developing the agreement conventionally called the Edict of Milan.

30. Returns to Cologne

    0313-07-01 · Colonia Agrippinensium (Cologne, Germany)

    An imperial constitution records Constantine at Cologne during renewed activity on the lower Rhine. The entry is based on Codex Theodosianus 11.3.1.

31. Back at Trier

    0313-08-03 · Augusta Treverorum (Trier, Germany)

    Constantine returned to Trier after his lower-Rhine journey and continued governing the western provinces from the city. The entry is based on an imperial constitution.

32. Attends the Council of Arles

    0314-08-01 · Arelate (Arles, France)

    Constantine was present at the Council of Arles, convened during the imperial effort to resolve the Donatist dispute.

33. Issues laws at Cabillunum

    0316-03-21 · Cabillunum (Chalon-sur-Saône, France)

    An imperial constitution places Constantine at Cabillunum during his movement through Gaul before the war with Licinius.

34. Stops at Vienne

    0316-05-06 · Vienna (Vienne, France)

    An imperial law records Constantine at Vienne on the Rhône corridor.

35. Resides at Arles

    0316-08-13 · Arelate (Arles, France)

    Imperial enactments place Constantine at Arles shortly before his eastern campaign against Licinius.

36. Fights at Cibalae

    0316-10-08 · Cibalae (Vinkovci, Croatia)

    Constantine personally led his forces against Licinius near Cibalae and won a major, though not final, civil-war victory. The battle was formerly dated by some scholars to 314; the modern consensus used here is 316.

37. Advances to Philippi

    0316-12-01 · Philippi, Macedonia (near Krinides, Greece)

    Constantine reached Philippi during the continuing campaign against Licinius in Macedonia and Thrace. The date is approximate.

38. Reaches Serdica

    0316-12-04 · Serdica (Sofia, Bulgaria)

    Constantine was at Serdica during negotiations and maneuvering after the Battle of Cibalae.

39. Fights on the Campus Ardiensis

    0317-01-01 · Campus Ardiensis, Thrace (near Harmanli, Bulgaria)

    Constantine led the bulk of his army against Licinius in the indecisive battle conventionally called Mardia or Campus Ardiensis. The ancient battlefield's exact position is disputed; coordinates represent the commonly proposed Harmanli vicinity.

40. Returns to Serdica

    0317-02-01 · Serdica (Sofia, Bulgaria)

    After the campaigning in Thrace, Constantine returned to Serdica, where peace arrangements with Licinius were completed.

41. Makes Sirmium an imperial residence

    0318-01-01 · Sirmium (Sremska Mitrovica, Serbia)

    During the years after the first war with Licinius, Constantine resided almost continuously at Sirmium while directing Danubian defense. The card represents an extended 317–324 residence rather than a visit confined to 318.

42. Visits his birthplace

    0319-07-25 · Naissus (Niš, Serbia)

    An imperial constitution records Constantine at Naissus, his native city, during a Danubian itinerary.

43. Winters at Serdica

    0319-11-01 · Serdica (Sofia, Bulgaria)

    A sequence of imperial constitutions places Constantine at Serdica from November 319 into May 320. The attested stay continued through 320-05-19.

44. Returns to Sirmium

    0320-05-22 · Sirmium (Sremska Mitrovica, Serbia)

    Constantine returned to Sirmium and remained attested there through August while overseeing the central Danube. The documented stay extends to 320-08-10.

45. Visits Viminacium

    0321-05-21 · Viminacium (near Kostolac, Serbia)

    An imperial enactment places Constantine at the legionary and provincial center of Viminacium. Coordinates mark the archaeological site.

46. At Serdica before renewed war

    0322-12-18 · Serdica (Sofia, Bulgaria)

    Constantine was again at Serdica as tensions and frontier campaigning preceded the final conflict with Licinius.

47. Campaigns at Bononia

    0323-01-01 · Bononia (Vidin, Bulgaria)

    Constantine reached Bononia on the lower Danube during the final stage of his 323 Sarmatian operations. The campaign is dated only to summer.

48. Campaigns at Campona

    0323-01-01 · Campona (Nagytétény, Budapest, Hungary)

    During a summer campaign against the Sarmatians, Constantine was successively present at Campona, Margus, and Bononia. The campaign is dated only to summer; coordinates identify the Roman fort at Campona.

49. Campaigns at Margus

    0323-01-01 · Margus (near Požarevac, Serbia)

    Constantine's Sarmatian campaign moved downstream to Margus, a strategic settlement near the Morava's junction with the Danube. Ancient Margus is generally located near modern Požarevac; the precise site is uncertain.

50. Commands from Thessalonica

    0323-01-01 · Thessalonica (Thessaloniki, Greece)

    Constantine maintained his general headquarters at Thessalonica before marching against Gothic raiders. The source places this movement in 323.

51. Prepares the Licinian campaign

    0324-03-01 · Thessalonica (Thessaloniki, Greece)

    Constantine assembled and prepared his army at Thessalonica for the final civil war against Licinius. He is independently attested there from March 8 through April 9.

52. Besieges Byzantium

    0324-07-01 · Byzantium (Istanbul, Turkey)

    After Adrianople, Constantine moved against Licinius's fortified base at Byzantium and conducted a siege lasting into September. The siege began in July or shortly afterward; its exact opening day is uncertain.

53. Wins the Battle of Adrianople

    0324-07-03 · Adrianople (Edirne, Turkey)

    Constantine crossed the Hebrus and personally led the attack that defeated Licinius near Adrianople. Coordinates represent ancient Adrianople; the battlefield lay along the nearby Hebrus River.

54. Lands at the Sacred Promontory

    0324-09-01 · Sacred Promontory, Bosporus (Üsküdar area, Istanbul, Turkey)

    Constantine crossed the Bosporus with his army and landed on its Asian shore before marching toward Chrysopolis. The exact location of the Sacred Promontory is uncertain; coordinates are representative of the Asian Bosporus shore near Üsküdar.

55. Wins at Chrysopolis

    0324-09-18 · Chrysopolis (Üsküdar, Istanbul, Turkey)

    Constantine decisively defeated Licinius at Chrysopolis, leaving himself sole ruler of the Roman Empire.

56. Receives Licinius's surrender

    0324-09-19 · Nicomedia (İzmit, Turkey)

    The day after Chrysopolis, Constantine reached Nicomedia and received Licinius's surrender.

57. Resides at Nicomedia

    0325-02-25 · Nicomedia (İzmit, Turkey)

    An imperial constitution places Constantine at Nicomedia during preparations for the church council at nearby Nicaea.

58. Opens the Council of Nicaea

    0325-05-23 · Imperial Palace, Nicaea (İznik, Turkey)

    Constantine attended the First Council of Nicaea, formally entered the assembly, delivered an opening speech, and joined its debates. The itinerary attests him at Nicaea by May 23; the council's formal opening is variously dated to May 20 or later in June. Coordinates represent İznik because the palace site is not securely identified.

59. Celebrates at Nicomedia

    0325-07-25 · Nicomedia (İzmit, Turkey)

    Constantine was at Nicomedia for the opening of his vicennial year and remained in the area into September. The documented stay continued to approximately September 15.

60. Visits Constantinople during construction

    0325-10-13 · Constantinople (Istanbul, Turkey)

    An imperial constitution places Constantine at his developing new capital several years before its formal dedication.

61. Stops at Heraclea

    0326-02-03 · Heraclea Perinthus (Marmara Ereğlisi, Turkey)

    Constantine was at Heraclea in Thrace during the early phase of his westward vicennial journey. Heraclea is identified as Heraclea Perinthus on the Propontis.

62. Returns briefly to Constantinople

    0326-03-08 · Constantinople (Istanbul, Turkey)

    An imperial constitution records Constantine at Constantinople shortly before he continued westward.

63. Reaches Aquileia

    0326-04-01 · Aquileia, Italy

    Constantine stayed at Aquileia from April 1 through April 4 while traveling toward Italy's western cities. The date field uses month precision because the stay spans several days.

64. Arrives at Milan on the vicennial journey

    0326-07-06 · Mediolanum (Milan, Italy)

    Constantine reached Milan shortly before proceeding to Rome for the culmination of his twentieth-anniversary celebrations.

65. Returns to Rome for the vicennalia

    0326-07-18 · Rome, Italy

    Constantine entered Rome for vicennial ceremonies; his stay coincided with the dynastic crisis involving Crispus and Fausta. One chronological tradition gives July 18 and another July 21; the scholarly reconstruction cited supports July 18.

66. Stops at Spoletium

    0326-09-25 · Spoletium (Spoleto, Italy)

    Constantine was at Spoletium during his return journey from Rome toward the Balkans and the eastern imperial centers.

67. Ends the year at Sirmium

    0326-12-31 · Sirmium (Sremska Mitrovica, Serbia)

    An imperial constitution records Constantine at Sirmium at the end of his return journey through the Balkans.

68. Stops at Thessalonica

    0327-02-27 · Thessalonica (Thessaloniki, Greece)

    Constantine was at Thessalonica while returning to the Propontis and his eastern residences.

69. Returns to Constantinople

    0327-06-11 · Constantinople (Istanbul, Turkey)

    An imperial constitution confirms Constantine's return to Constantinople after the extended western journey.

70. Visits Nicomedia

    0327-07-30 · Nicomedia (İzmit, Turkey)

    Constantine was again at Nicomedia, an important residence and administrative center near his new capital.

71. Attends a council at Nicomedia

    0327-12-01 · Nicomedia (İzmit, Turkey)

    Constantine personally attended a church council at Nicomedia during renewed controversy over Arius and the post-Nicene settlement. The council occurred in December 327 or January 328.

72. At Serdica on the western circuit

    0328-05-18 · Serdica (Sofia, Bulgaria)

    An imperial constitution places Constantine at Serdica during a renewed journey toward the Danube and Rhine.

73. Visits Oescus

    0328-07-05 · Oescus (Gigen, Bulgaria)

    Constantine reached the Danubian fortress and colony of Oescus while inspecting or administering the frontier region. Coordinates mark the archaeological site near Gigen.

74. Returns to Trier

    0328-09-27 · Augusta Treverorum (Trier, Germany)

    Constantine returned to his former western capital during a Rhine campaign and remained attested there into December.

75. Resides again at Sirmium

    0329-03-01 · Sirmium (Sremska Mitrovica, Serbia)

    A series of imperial constitutions records Constantine at Sirmium from March 9 through April 18. The date uses month precision for a stay extending into April.

76. Stays at Serdica

    0329-05-01 · Serdica (Sofia, Bulgaria)

    Imperial enactments place Constantine at Serdica from May 29 through June 19. The stay continued into June.

77. Revisits Naissus

    0329-05-13 · Naissus (Niš, Serbia)

    Constantine was again at his birthplace during his return from the western frontiers.

78. Returns to Heraclea

    0329-08-03 · Heraclea Perinthus (Marmara Ereğlisi, Turkey)

    Constantine was at Heraclea Perinthus while traveling east through Thrace toward the Propontis. Identification with Heraclea Perinthus is highly probable but not stated in the tabular source.

79. At Serdica before the capital's dedication

    0330-02-05 · Serdica (Sofia, Bulgaria)

    Constantine was at Serdica during his final approach to the new imperial capital before its formal inauguration.

80. Passes through Bessapara

    0330-02-22 · Bessapara (near Pazardzhik, Bulgaria)

    An imperial constitution records Constantine at the Thracian road station of Bessapara while traveling toward Constantinople. The ancient settlement's precise location is debated; coordinates represent the generally accepted Pazardzhik vicinity.

81. Dedicates Constantinople

    0330-05-11 · Constantinople (Istanbul, Turkey)

    Constantine formally dedicated his enlarged and renamed city, establishing it as his principal imperial residence and a lasting Roman capital.

82. Lives in Constantinople

    0331-01-01 · Constantinople (Istanbul, Turkey)

    After the dedication, Constantine made Constantinople his permanent capital and spent a substantial portion of his remaining life there. This card represents recurring residence from 330 onward.

83. Tries Athanasius near Nicomedia

    0331-11-01 · Psamathia, suburb of Nicomedia (İzmit area, Turkey)

    Constantine heard accusations against Athanasius at Psamathia, identified in the itinerary as a suburb of Nicomedia. The proceedings extended into January 332. The suburb's precise archaeological location is unknown; coordinates are representative of Nicomedia.

84. Visits Marcianopolis

    0332-04-12 · Marcianopolis (Devnya, Bulgaria)

    Imperial constitutions place Constantine at Marcianopolis shortly before his recorded victory over the Goths. Coordinates mark the archaeological area at Devnya.

85. Returns to Constantinople after the Gothic war

    0332-10-01 · Constantinople (Istanbul, Turkey)

    Constantine was again resident at Constantinople from October 332 through early May 333. The documented residence began October 17.

86. Visits Singidunum

    0334-07-05 · Singidunum (Belgrade, Serbia)

    Constantine reached Singidunum during a Danubian itinerary associated with renewed operations against the Sarmatians.

87. Returns to Viminacium

    0334-08-04 · Viminacium (near Kostolac, Serbia)

    An imperial constitution records Constantine at Viminacium during the same frontier journey.

88. Revisits Naissus during the Sarmatian campaign

    0334-08-25 · Naissus (Niš, Serbia)

    Constantine was at Naissus while directing the campaign that followed upheaval among the Sarmatians.

89. Holds his tricennalia in Constantinople

    0335-07-25 · Constantinople (Istanbul, Turkey)

    Constantine was in Constantinople for the thirtieth-anniversary year of his accession and remained there through much of 335. The itinerary attests him in the capital from March 22 through October 21.

90. Visits Nicopolis

    0335-10-23 · Nicopolis ad Istrum (near Nikyup, Bulgaria)

    Constantine was at Nicopolis shortly before returning to Constantinople in November. The itinerary does not specify which Nicopolis; identification with Nicopolis ad Istrum is plausible but not certain.

91. Returns to Constantinople

    0335-11-06 · Constantinople (Istanbul, Turkey)

    Constantine returned to his capital after the Council of Tyre and related ecclesiastical proceedings.

92. Campaigns north of the Danube

    0336-01-01 · Southern Dacia, north of the Lower Danube (Romania)

    In his final major frontier operations, Constantine campaigned beyond the Danube and recovered territory in southern Dacia. No exact route or battlefield is established; coordinates are a representative point in southern Romania.

93. Spends his last winter in Constantinople

    0336-12-01 · Constantinople (Istanbul, Turkey)

    Constantine remained in Constantinople through the winter of 336–337 while preparing for a projected Persian campaign. The attested residence runs from July 25, 336, through April 3, 337.

94. Seeks treatment at Helenopolis

    0337-04-01 · Helenopolis (Altınova, Yalova Province, Turkey)

    After becoming seriously ill, Constantine left Constantinople for the hot baths near Helenopolis and prayed in the local Church of Saint Lucian. The journey occurred in April or May after Easter; ancient Drepanum/Helenopolis is associated with the Altınova area.

95. Receives baptism near Nicomedia

    0337-05-01 · Suburbs of Nicomedia (İzmit, Turkey)

    Constantine moved to the suburbs of Nicomedia, summoned bishops, and received baptism as his final illness worsened. The baptism occurred shortly before his death; its exact day and site are not securely known.

96. Dies at Achyron

    0337-05-22 · Achyron, suburb of Nicomedia (İzmit area, Turkey)

    Constantine died at the suburban imperial villa called Achyron near Nicomedia, ending a reign begun at York in 306. The precise site of Achyron or Ancyrona has not been securely located; coordinates represent the Nicomedia area.