- Perang Dunia I
- Perang Dunia II
- Blok Sekutu dalam Perang Dunia II
- Rumpun suku bangsa Slavia
- Hubungan Italia dengan Tiongkok
- Imperium Italia
- Daftar kota kembar di Yunani
- CERN
- Orang Yunani
- Kekaisaran Romawi Timur
- Bulgaria–Italy relations
- Bulgaria–Greece relations
- Foreign relations of Bulgaria
- Bulgaria–Turkey relations
- Bulgaria–United States relations
- Bulgaria–United Kingdom relations
- Foreign relations of Italy
- Bulgarians in Italy
- Bulgaria–Kosovo relations
- Bulgaria–France relations
