History Abbreviations and Acronyms

1. OATH
   Opuscula Atheniensia
2. OBHC
   Outer Janks History Center
3. OBHC
   Outer Banks History Center
4. OBO
   Orbis Biblicus Et Orientalis
5. OC
   Old Cemeterres
6. OC
   Oll Contemptible
7. OC
   Oliver Cromwell
8. OC
   Oriens Christianus
9. OCHM
   Old Colony History Museum
10. OCHS
    Outagamie County Historical Society
11. OCLC
    On-Line Computer Library Center
12. OCMH
    Oxford Centre for Medieval History
13. OCP
    Orientalia Clristiana Periodica
14. OD
    Ordnance Datum
15. ODALE
    Office of Drug Abuse Law Enforcement
16. ODB
    Oxford Dictionary of Byzantium
17. ODDDA
    Owtrad Dromographic Digital Data Archives
18. ODM
    Office of Defense Mobilization
19. ODNB
    Oxford Dictionary of National Biography
20. OE
    Ottoman Empire

Last updated: May 24, 2020 — Total entries: 3,857