text: Autonyms used throughout history by various Chakavian writers have been straightforward, ranging from mainly Croatian (harvatski, harvacki, hrvatski) to Slavic (slovinski) and Illyrian (illirski), but also other idioms, Kajkavian and Shtokavian, throughout history were named and understood as Croatian language. Chakavian compared to others is one of the oldest written South Slavic varieties that had made a visible appearance in legal documents—as early as 1275 (Istrian land survey) and 1288 (Vinodol codex), where the predominantly vernacular Chakavian is recorded, mixed with elements of Church Slavic. However, in both of them it is named as "Croatian language" (jazikom harvaskim/hrvatski/hervatski). The term Chakavian (noun čakavac) is first recorded in 1728 in the Ardelio Della Bella's Dizionario italiano-latino-illirico and in the beginning of the 19th century in Joakim Stulić's Lexicon latino–italico–illyricum, while adjective (čakavski) in Antun Mažuranić's analysis of Vinodol codex (1843). No Croatian literary writer used words "čakavac" and "čakavski" to describe their, Croatian, language until the late 19th century, and it is mostly since the 20th century that these terms have been popularized through the education system. Croatian literary authors of what would later be known as Chakavian and Shtokavian idioms, from different parts of Dalmatia and Ragusa, in corresponding letters wrote that they belonged to the same Croatian nation, and spoke the same language ("časti našega jezika", "naš jezik") which they named as Croatian or Slavic ("kud jezik harvatski prohodi", "slovinski jezik"). With its name and dialectological or language form, it is mainly a creation advanced by linguists. Today, the term Chakavian is accepted by its speakers and linguists in Croatia, but usually for practical reasons.