Glagolitic was created by Cyril and Methodius which was the precursor for Cyrillic. Whether they were Greek or Bulgarian is still in contention, but that doesn't matter. What matters is that Cyrillic itself was created later by students of theirs in Bulgaria at the Preslav Literary School.
On the political aspect Russia has always hated the fact that small Bulgaria gave them their alphabet/culture and has used it's influence to bitch, moan and subjugate ever since. Most recent rage bait is with bullshit like saying that it's actually from (the country now known as) North Macedonia.
On the political aspect Russia has always hated the fact that small Bulgaria gave them their alphabet/culture and has used it's influence to bitch, moan and subjugate ever since. Most recent rage bait is with bullshit like saying that it's actually from (the country now known as) North Macedonia.