Learn about this topic in these articles:
...New Georgian literary language is based on an East Georgian dialect and originated in the secular literature of the 12th century; it became fully established in the middle of the 19th century. Old Georgian was used for religious purposes until the beginning of the 19th century.
...which dates back to the 5th century ad, when the oldest datable monuments were inscribed in an original script. With regard to the order of the alphabet and the shape of some characters, this Old Georgian script is presumed to have been derived from the Greek alphabet. The modern Georgian writing system is based on the round-form cursive, which was developed from the angular book script of...