Is it a dialect or a separate language?
Spoken by 12 million people across Southern Germany, Austria, and Italy, Bavarian defies easy classification. While many label it a German dialect, its linguistic distance from Standard German is greater than that between Czech and Slovak, prompting intense debate among scholars and international organizations.
The status of Bavarian is a subject of significant academic and institutional tension. On one hand, it lacks a standardized written form and is often used alongside Standard German, which serves as the primary medium for education and media. Because many speakers use Standard German for writing, the dialect is sometimes referred to as 'Schriftdeutsch' (written German). This lack of official status and the absence of a formal application for the European Charter for Regional or Minority Languages lead some to classify it merely as a dialect.
On the other hand, the structural differences are profound. The International Organization for Standardization has assigned it a unique language code (bar), and UNESCO has included it in the Atlas of this World's Languages in Danger since 2009. The linguistic gap between Bavarian and Standard German is actually wider than the gap between officially recognized languages like Danish and certain Norwegian varieties, or even Croatian and Serbian.
The roots of the language stretch back to the 6th century and the Baiuvarii people, whose name may mean 'inhabitants of Boii land.' While the distinction between the East Upper German (Bavarian) and West Upper German (Alemannic) groups became more pronounced around the 12th century, the language continues to thrive in rural pockets. Today, roughly 45 percent of Bavarians reported using only the dialect for daily communication as of 2008, maintaining a linguistic heritage that predates modern national borders.
Source: Bavarian language