ラテン小文字A a

Latin Small Letter A a. Such lowercase Latin letters appeared in the Middle Ages from the so-called 「minuscule script」, which was used to save expensive parchment.

In Cyrillic script, people used to save up space between letters in a different way. They would write letters above other letters and pick cheaper materials (such as birch bark). That's why letters in minuscule were not widely spread. As for people from other cultures, it's necessary to mention that Bulgarians and Serbs borrowed some typographic traditions from the West, and their script is closer to the Latin script.

シンボル「ラテン小文字A」は「基本ラテン文字」ブロックの「ラテンアルファベットの小文字」サブブロックに含まれており、1993年にUnicodeバージョン1.1の一部として承認されました。