IxTheo Classification
[Unassigned]
2,954,198 results
HC New Testament
HB Old Testament
98,043 results
KDB Roman Catholic Church
75,422 results
SB Catholic Church law
74,071 results
KAJ Church history 1914-; recent history
49,761 results
HA Bible
38,920 results
KBB German language area
38,116 results
KDD Protestant Church
37,130 results
CB Christian life; spirituality
33,151 results
KAH Church history 1648-1913; modern history
27,225 results
RB Church office; congregation
26,539 results
KAB Church history 30-500; early Christianity
25,462 results
SA Church law; state-church law
23,368 results
CD Christianity and Culture
23,206 results
HH Archaeology
21,995 results
RC Liturgy
21,361 results
NBE Anthropology
21,200 results
KCA Monasticism; religious orders
21,192 results
VA Philosophy
21,053 results
RF Christian education; catechetics
18,767 results
KAG Church history 1500-1648; Reformation; humanism; Renaissance
17,777 results
HD Early Judaism
16,860 results
NBC Doctrine of God
16,712 results
RJ Mission; missiology
16,556 results
BH Judaism
16,470 results
AD Sociology of religion; religious policy
16,288 results
CG Christianity and Politics
15,752 results
NCC Social ethics
14,892 results
KDJ Ecumenism
14,877 results
CC Christianity and Non-Christian religion; Inter-religious relations
14,673 results
CH Christianity and Society
14,438 results
KBQ North America
14,134 results
NCA Ethics
12,702 results
TC Pre-Christian history ; Ancient Near East
12,276 results
NBF Christology
12,181 results
KAE Church history 900-1300; high Middle Ages
12,179 results
RG Pastoral care
11,987 results
NBP Sacramentology; sacraments
11,766 results
BJ Islam
11,249 results
KDG Free church
10,997 results
KBJ Italy
10,436 results
FD Contextual theology
10,114 results
RE Homiletics
9,812 results
NCF Sexual ethics
9,763 results
NBN Ecclesiology
9,461 results
KBK Europe (East)
8,983 results
XA Law
8,862 results
KBM Asia
8,727 results
NCG Environmental ethics; Creation ethics
8,690 results
KBL Near East and North Africa
8,390 results
BC Ancient Orient; religion
8,220 results
AB Philosophy of religion; criticism of religion; atheism
8,150 results
NCD Political ethics
8,146 results
KDF Orthodox Church
7,829 results
CF Christianity and Science
7,770 results
KCD Hagiography; saints
7,646 results
ZB Sociology
7,641 results
AA Study of religion
7,551 results
TK Recent history
7,501 results
KAA Church history
7,450 results
KBN Sub-Saharan Africa
7,317 results
NBK Soteriology
7,151 results
NAA Systematic theology
7,114 results
FA Theology
7,094 results
ZD Psychology
6,885 results
CE Christian art
6,694 results
NCE Business ethics
6,670 results
RA Practical theology
6,628 results
KBG France
6,563 results
AG Religious life; material religion
6,494 results
NBQ Eschatology
6,285 results
KBF British Isles
6,249 results
RH Evangelization; Christian media
5,900 results
KCB Papacy
5,858 results
KAF Church history 1300-1500; late Middle Ages
5,851 results
RK Charity work
5,844 results
KDE Anglican Church
5,831 results
KBR Latin America
5,814 results
KBH Iberian Peninsula
5,745 results
FB Theological education
5,645 results
NBD Doctrine of Creation
5,566 results
ZF Education
5,494 results
RD Hymnology
5,394 results
KCC Councils
5,265 results
TB Antiquity
4,791 results
AX Inter-religious relations
4,658 results
KAC Church history 500-1500; Middle Ages
4,565 results
AZ New religious movements
4,409 results
AE Psychology of religion
4,352 results
KBD Benelux countries
4,325 results
KAD Church history 500-900; early Middle Ages
4,283 results
ZC Politics in general
4,146 results
NBJ Mariology
3,841 results
NBG Pneumatology; Holy Spirit
3,704 results
CA Christianity
3,494 results
VB Hermeneutics; Philosophy
3,346 results
BL Buddhism
3,152 results
NBA Dogmatics
3,133 results
NAB Fundamental theology
3,126 results
KBC Switzerland
3,063 results
NBB Doctrine of Revelation
3,043 results
SD Church law; Protestant Church
2,941 results
BE Greco-Roman religions
2,854 results
ZG Media studies; Digital media; Communication studies
2,810 results
NCB Personal ethics
2,788 results
KBE Northern Europe; Scandinavia
2,698 results
BF Gnosticism
2,670 results
TJ Modern history
2,567 results
KBA Western Europe
2,558 results
BK Hinduism, Jainism, Sikhism
2,538 results
TE Middle Ages
2,482 results
NCH Medical ethics
2,359 results
NBM Doctrine of Justification
2,327 results
TA History
1,766 results
KBS Australia; Oceania
1,653 results
NBH Angelology; demonology
1,354 results
BB Indigenous religions
1,289 results
AH Religious education
1,230 results
ZA Social sciences
1,229 results
KDA Church denominations
1,134 results
KDH Christian sects
942 results
SE Church law; Orthodox Church
922 results
NCJ Ethics of science
894 results
AF Geography of religion
852 results
BM Chinese universism; Confucianism; Taoism
844 results
NBL Doctrine of Predestination
709 results
BG World religions
664 results
TD Late Antiquity
544 results
TG High Middle Ages
525 results
KDC Old Catholic Church
452 results
KBP America
336 results
SC Church law; Anglican Church
320 results
TH Late Middle Ages
303 results
TF Early Middle Ages
273 results
BD Ancient European religions
258 results
BS Traditional African religions
213 results
BN Shinto
187 results
BR Ancient religions of the Americas
179 results
BT Religions of Oceania
19 results