Köthen (Anhalt) is a town located in the state of Saxony-Anhalt, Germany. It is known for its rich history and beautiful architecture, including the Köthen Castle, which dates back to the 16th century. The town is situated along the Köthen River and has a population of around 25,000 residents. The town is also famous for its connection to the composer Johann Sebastian Bach, who worked there in the early 18th century. Köthen hosts various cultural events and festivals throughout the year, attracting visitors interested in its historical significance and vibrant community life.