On 23 August 1664, Altona was chartered by Danish King Friedrich III. Until 1864, Altona was the second largest city in the Danish Kingdom. And until it was integrated in the city state of Hamburg in 1938, it was the largest city in the Prussian province of Schleswig-Holstein. In the 17th and 18th centuries Altona de- veloped from being a small fishing village to become a prosperous trading city. In the course of the 19th century, the city developed into a significant industrial location. More recently, Altona is known as a trendy place in the west of Hamburg. The exhibition displays Altona’s history with a focus on urban development. It also showcases some of the important people in Altona’s history who represent milestones in the city’s development.