The Bulgarian alphabet is a writing system used for the Bulgarian language, consisting of 30 letters. It is a variant of the Cyrillic script, which was developed in the 9th century. The alphabet includes unique letters such as ъ (yeri) and ь (soft sign), which represent specific sounds in Bulgarian. Each letter in the Bulgarian alphabet corresponds to a single sound, making it a phonetic writing system. The alphabet is used not only in Bulgaria but also in other countries with Bulgarian-speaking communities. It plays a crucial role in preserving the language and culture of the Bulgarian people.