Upper Sorbian language

It is grouped in the West Slavic language branch, together with Lower Sorbian, Czech, Polish, Silesian, Slovak, and Kashubian.

[4] The history of the Upper Sorbian language in Germany began with the Slavic migrations during the 6th century AD.

Beginning in the 12th century, there was a massive influx of rural Germanic settlers from Flanders, Saxony, Thuringia and Franconia.

This so-called "Ostsiedlung" (eastern settlement or expansion) led to a slow but steady decline in use of the Sorbian language.

The oldest evidence of written Upper Sorbian is the Burger Eydt Wendisch document, which was discovered in the city of Bautzen and dates to the year 1532.