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| Language | Old Bulgarian |
|---|---|
| Publication place | Bulgaria |
The Book of Boril orBoril Synodic (Bulgarian:Борилов синодик) is a medievalBulgarian book from the beginning of the 13th century.It is an important source for the history of theBulgarian Empire.
The book was written in conjunction with theSynod of Tarnovo (1211) convoked bytsarBoril against theBogomils in 1211. Later additions and editions were made, dated at the end of XIV c.[1]