Although Bulgarian uses the Cyrillic alphabet, some preferred letter shapes in Bulgaria are different to those in Russian use.
Did Bulgarians invent Cyrillic?
You may have seen those strange letters that look half-Latin half-Greek and are used in Russia, Ukraine, Bulgaria, Serbia, Macedonia and other countries. This is the Cyrillic alphabet and you may be surprised to know that Bulgarians invented it back in the 9th century.
Is Cyrillic Bulgarian or Russian?
Two Bulgarians Created the Cyrillic Script
In the 9th century, Bulgarian brothers Cyril and Methodius created the Cyrillic script, which is used still used today in Bulgarian, Russian, Serbian, and other Slavic languages.