Primary Sources of the Early Arian Controversy

Most of what is known about the early development of what is called "Arianism" comes from the sources given below. These texts were collected in the original languages by H.-G. Opitz in the third volume of his edition of Athanasius' Werke. We have collected for the first time a complete set of English translations of these early writings.

Patristic scholars today warn against lumping together as "Arians" all the early theologians who had reservations about granting the Son full equality with the Father. They argue that it was the opponents of Arius who created this persona of Arius as the leader and arch-heretic of this theological tendency. Even his role as originator of the open controversy has been questioned, with men such as Eusebius of Caesarea, Asterius the Sophist and Lucian of Antioch offered as the true instigators. Instead Arius and those with similar ideas are seen as continuing a much earlier tradition of emphasizing the Son as being "substantially" other from the Father. On the other hand, the key role of Arius in both the theological and public debate is clearly seen in the writings below.

Our abbreviations page A map of early sympathizers with Arius A timeline of the Arian controversy Arius' writings page.

The difficulty in dating these documents arises from the fact that their order must be determined almost completely on internal evidence, and the dates of the events immediately surrounding these letters are uncertain (for instance, the exact date of Licinius' prohibition on Christian synods, and later, the date of Eustathius' deposition). Several chronological theories have been advanced in recent years, and we encourage you to compare various dating systems: 

R. P. C. Hanson (1988) Rowan Williams (2002) Sarah Parvis (2006) Athanasius Werke - Urkunden vol. 3.3 (2007)

Columns 1 and 2 provide the document number (Urk.) and date in Opitz's Early Arian Documents, Athanasius Werke, band 3.1-2 (1934).
Column 4 gives the location in the sources from which we have taken the document.
Column 5 gives the location of translations.  Clicking on the FCC (Fourth-Century Christianity) link in the last column will open our translation of the document.
Column 6 provides the document number (Doc.) in the recently published edition of Athanasius Werke, band 3, teil, 1, lieferung 3 (Berlin and New York 2007).
Column 7 gives the Clavis Patrum Graecorum reference number.

1 2 3 4 5 6 7
1 c. 318 Arius to Eusebius of Nicomedia

Epiphanius, Panarion 69.6;
Theodoret, Historia ecclesiastica 1.5
(1.4 in the NPNF)

FCC;
New Eusebius
, no. 283; 
Sections 2-8:  Hanson, p. 139, 
Sections 4-5: Hanson, p. 6;  
NPNF2 vol. 3, p. 41
15 2025
2 c. 318 Fragment of a letter from Eusebius of Nicomedia to Arius

Athanasius, De synodis 17.2

FCC;
Hanson, p. 31;
NPNF2 vol. 4, p. 459
16 2046
3 c. 318 Eusebius of Caesarea to Euphration of Balanea Sections 1-3:  Council of Nicaea, Session 5:
Labbe  vol. 7, col. 365;  
Sections 1-2: 2nd Council of Nicaea, Session 5:
 in Mansi vol. 13, col.176, 317;
Sections 4-5:
Eusebius, Contra Marcellum 1.4.40-41, 57; Athanasius, De synodis 17.3
FCC 10 3500
4a 318/9 Alexander of Alexandria to his clergy Athanasius, De decretis 34 FCC;
NPNF2 vol. 4, p. 69
2.1 2001
4b c. 318 Alexander of Alexandria’s encyclical letter on Arius’s deposition

Athanasius, De decretis 35;
Socrates, Historia ecclesiastica 1.6.;
Gelasius, Historia ecclesiastica  2.3.1-21

FCC;
New Eusebius,
no. 282;
NPNF2 vol. 4, pp. 69-72;
NPNF2 vol. 2, pp.3-5;
Sections 2-3: Hanson, p. 16 
2.2 2000
5 c. 320 Summary of letter of a Council in Bithynia Sozomen, Historia ecclesiastica  1.15.10 FCC; NPNF2 vol. 2, p. 252 3  
6 c. 320 Arius and his followers to Alexander of Alexandria Athanasius, De synodis 16;
Epiphanius, Panarion 69.7;
Hilary, De Trinitate 4.12
FCC;
CLA
no. 22;
Hanson, pp. 7-8; 
NPNF2 vol. 4, p. 458; 
NPNF2  vol. 9, p. 74;
New Eusebius,
no. 284
1 2026
7 c. 320 Eusebius of Caesarea to Alexander of Alexandria 2nd Council of Nicaea:
Labbe, vol. 7, col. 496 and Mansi, vol.13, coll. 316-7
FCC 9 3501
8 c. 320/1 Eusebius of Nicomedia to Paulinus of Tyre Theodoret, Historia ecclesiastica 1.6
(1.5 in the NPNF)
FCC;
NPNF2 vol. 3, p. 42
4 2045
9 c. 320 Fragment of a letter of Paulinus of Tyre Eusebius, Contra Marcellum 1.4.18-21, 49-51 FCC;
Hanson, p. 45
5 2065
10 c. 321/2 Summary of letter of a council in Palestine reinstating Arius Sozomen, Historia ecclesiastica 1.15.11 FCC;
NPNF2 vol. 2, p. 252
8  
11 c. 322 Athanasius of Anazarbus to Alexander of Alexandria Athanasius, De synodis 17.4 FCC;
NPNF2 vol. 4, p. 458;
Discussed Hanson, p. 42 
11 2060
12 c. 322 Priest George to Alexander of Alexandria Athanasius, De synodis 17.5 FCC;
Hanson, p. 44;  
NPNF2 vol. 4, p. 459 
6 3555
13 c. 322 Priest George to the Arians in Alexandria Athanasius, De synodis 17.6 FCC;
Hanson, p. 44;  
NPNF2 vol. 4, p. 459
7 3556
14 324 Alexander of Alexandria to Alexander of  Byzantium Theodoret, Historia ecclesiastica 1.4
(1.3 in the NPNF)
FCC;
CLA
no. 21;
NPNF2  vol. 3, pp. 35-41;
Discussed in Hanson, p. 141-2
Discussed on New Eusebius, no. 285  
17 2002
15 324 Fragment of a letter of Alexander of Alexandria to all bishops Greek: Schwartz, pp. 265-7;
Syriac: Pitra, vol. 4,  pp. 196-7
FCC 14 2003
16 ? Fragment a letter of Alexander of Alexandria to Sylvester of Rome Section 1: Richard, p. 82;
Section 2: Hilary: CSEL vol. 65, part 4, pp. 91-92;
FCC 18  
17 Oct. 324 Emperor Constantine to Alexander of Alexandria and Arius Eusebius, Vita Constantini, 2.64;
Sections 6-15: Socrates, Historia ecclesiastica 1.7;
Sections 6-15: Gelasius, Historia Ecclesiastica 2.4
FCC;
New Eusebius,
no. 287; 
Coleman, no. 47;
NPNF2 vol. 1, pp. 515-8;
Sections 6-15: NPNF2 vol. 2, p. 6-7
19 2020
18 Beginning of 325 Letter of the Council of Antioch (325) Greek and Syriac: Schwartz, pp. 271-9;
Syriac: Schulthess, pp. 160-2
FCC;
New Eusebius,
no. 288;
Sections 8-11: Hanson, p. 149
20 8509
19 325 Fragment of a letter of Narcissus of Neronias to Chrestus, Euphronius and Eusebius Eusebius, Contra Marcellum, 1.4.39 FCC 21  
20 Spring 325 Emperor Constantine’s letter calling the Council of Nicaea Greek: Schwartz, p. 289;
Syriac: Schulthess, p. 1
FCC;
New Eusebius,
no. 289; 
Coleman, no. 48
22 8511
21 June 325 Fragment of a letter from Eusebius of Nicomedia to the Council of Nicaea Ambrose, De fide 3.15 FCC;
Hanson, p. 31;  
NPNF2 vol. 10, p. 260 
23 2047
22 June 325 Eusebius of Caesarea to his church explaining his actions at the Council of Nicaea Athanasius, De decretis 33;
Theodoret, Historia ecclesiastica 1.12
(1.11 in NPNF);
Gelasius, Historia ecclesiastica 2.35; 
Socrates, Historia ecclesiastica 1.8
(section 16 omitted)
FCC;
New Eusebius,
no. 291;
NPNF2 vol. 4, pp. 74-76;
NPNF2 vol. 2, pp. 10; 
NPNF2 vol. 3 p. 51 (partial);
Sections 3-6: Hanson, p. 159;
Section 7: Hanson, p. 165;
Section 16: Hanson, p. 166
24 3502
23 June 325

Letter of the Council of Nicaea to the Egyptian church

Athanasius, De decretis 36;
Socrates, Historia ecclesiastica 1.9;
Theodoret, Historia ecclesiastica 1.9.2
(1.8.2 in NPNF);
Gelasius, Historia ecclesiastica 2.34.2
FCC;
New Eusebius
, no. 292;  
NPNF2 vol. 2, p. 12;
NPNF2 vol. 3, p. 46  
25 8515
24 June 19th 325 Creed of the Council of Nicaea Athanasius, De decretis 37   FCC;
NPNF2 vol. 4, p. 75
26 8512
25 June 325

Emperor Constantine to the church of Alexandria

Athanasius, De decretis 38;
Socrates, Historia ecclesiastica 1.9.17;
Gelasius, Historia ecclesiastica 2.37;
FCC;
Coleman, no. 53;
New Eusebius
, no. 293;  
NPNF2 vol. 2, p. 13  
29 8517
26 June 325 Emperor Constantine to the churches on the Nicene decision concerning Easter Eusebius, Vita Constantini 3.17-18;
Socrates, Historia ecclesiastica 1.9.32;
Theodoret, Historia ecclesiastica 1.10
(1.9 in NPNF);
Gelasius, Historia ecclesiastica 2.37.10
FCC;
Coleman, no. 52;
NPNF2 vol. 1, p. 524-5;  
NPNF2 vol. 2, p. 14-16;  
NPNF2 vol. 3, p. 47-8  
30 8518
27 Nov.-Dec. 325

Emperor Constantine to the church of Nicomedia

Athanasius, De decretis 41;
Gelasius, Historia ecclesiastica 3. appendix 1;
Sections 9-17:
Theodoret, Historia ecclesiastica 1.20
(1.19 in NPNF)
FCC;
Coleman, no. 50;
Sections 9-17:
New Eusebius
, no. 294;
NPNF2 vol. 3, p. 56
31 2055
28 Nov.-Dec. 325

Emperor Constantine to Theodotus of Laodicea

Athanasius, De decretis 42;
Gelasius, Historia ecclesiastica 3.appendix 2
FCC;
Coleman, no. 51;
New Eusebius
, no. 305
(1957 edition only)
32 2056
29 27 Nov. 327

Emperor Constantine to Arius

Socrates, Historia ecclesiastica 1.25.7 FCC;
Coleman, no. 58;
NPNF2 vol. 2, p. 28
33 2040
30 End of 327 Arius and Euzoius to the Emperor Constantine Socrates, Historia ecclesiastica 1.26.2;
Sozomen, Historia ecclesiastica 2.27.6-10
FCC;
New Eusebius, no. 295;
NPNF2 vol. 2, p. 28;
NPNF2 vol. 2, p. 277
34 2027
31 End of 327

Eusebius of Nicomedia and Theognis of Nicaea, recanting in order to be reinstated

Socrates, Historia ecclesiastica 1.14.2;
Sozomen, Historia ecclesiastica 2.16.3-7;
Gelasius, Historia ecclesiastica 3.13
FCC;
New Eusebius
, no. 296;
NPNF2 vol. 2, p. 20, vol. 2, p. 68
36 2048
32 Beginning of 328

Fragment of a letter from Emperor Constantine to Alexander of Alexandria

Gelasius, Historia ecclesiastica 3.15.1 FCC 37 2021
33 333 Part of an edict against Arius and his followers Athanasius, De decretis 39;
Socrates, Historia ecclesiastica 1.9.30;
Gelasius, Historia ecclesiastica 2.36.1
Syriac: Schulthess, pp. 1-2
FCC;
Coleman, no. 66;
NPNF2 vol. 2, p. 14   
28 2041
34 333 Emperor Constantine to Arius and his followers Athanasius, De decretis 40;
Gelasius, Historia ecclesiastica 3.19.1;
cf.: Epiphanius, Panarion 69.9
Coleman, no. 67;
Sections 14-15: Hanson, p. 189
27 2042

   

The following are not found in Opitz's Urkunden, but can be found in the 2007 edition:


12    Part of a letter of Athanasius of Anazarbus (CPG 2061), FCC translation
13    Parts of 2 letters of Theognis of Nicaea (CPG 2070), FCC translation letter a and letter b
35.1   Synod of Antioch (327) on its decisions against Asclepas of Gaza
35.2   Synod of Antioch (327) on its decision against Eustathius
38     Conflicts about the restoration of church unity in Egypt
39 Writings of the Synod of Jerusalem of the year 335
40 Synods in Constantinople against Marcellus of Ancyra
41 Correspondence and synods in Rome and Antioch during the years 340 and 341
    41.1 Letter of Julius of Rome to the eastern bishops with the request to appear at a synod in Rome
    41.2 Reports on the Dedication Synod of Antioch in the year 341
    41.3 Explanation of Theophronius of Tyana (3rd Antiochene formula)
    41.4 Confession of the Synod of Antioch in the year 341 (2nd Antiochene formula)
    41.5 Fragment of a cyclical letter of the Synod of Antioch in the year 341 (1st Antiochene formula)
    41.6 Report on a letter of the Synod of Antioch in the year 341 to Julius of Rome
    41.7 Letter and confession of Marcellus of Ancyra to Julius of Rome
    41.8 Letter of Julius to the bishops gathered in Antioch
42 Confession of an Antiochene synod (4th Antiochene formula), 341
43 The Synod of Serdica, 343
    43.1 Cyclical letters of the western bishops
    43.2 The theological explanation of the western bishops
    43.3 The list of the signatures under the theological explanation of the western bishops
    43.4 Letters of the western bishops to Emperor Constantius
    43.5 Letters of the western bishops to Julius of Rome
    43.6 Fragments of the letter of Hosias of Cordova and Protogenes of Serdica to Julius of Rome
    43.7 Letters of the western bishops to the church of Alexandria
    43.8 Letters of Athanasius of Alexandria to the priests and deacons of Alexandria and Parembole
    43.9 Letters of the western synod to the priests and deacons in Mareotis
    43.10 Letters of Athanasius of Alexandria to the priests, deacons, and church people in Mareotis
    43.11 Cyclical letters of the eastern synod
    43.12 The theological explanation of the eastern synod
    43.13 The list of the signatures under the theological explanation of the eastern synod
44 Macrostich Confession (Ἔκθεσις Μακρόστιχος), Fifth Arian Confession, 344

 

To see a German listing of the the entire contents of the recently published edition of Early Arian Documents, click here.

To see the page numbers from the Opitz edition, click here (English).

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