I'm from Bulgaria.
Long time I've wanted to discuss the issue of neglected Cyrillic alphabet.
It's a kind of orphan at the moment. It was developed during the Medieval time in the Bulgarian kingdom. Following very close graphical characteristic of Greek alphabet, together with Latin, the new alphabet become third one from the same family. After Bulgaria was conquered from the Ottoman empire the development of this alphabet stopped. It was like that until 18th century, when Peter The Great of Russia decided to make some reforms in it. Some letters were disregarded, others emerged, third received graphical changes.Initially good, this Reform somehow made the gap between similar Greek and Latin grow bigger.