The 19th century saw Karl Wilhelmi, dean and pioneer of historical research, carrying out numerous excavations. In fact, he was the one to discover some major artefacts which can still be seen in the museum today. Other events which affected Sinsheim´s history were the founding of a monastery on the Michaelsberg hill in 1100, the horrors of the Thirty Years War and the Battle of Sinsheim in 1674. A large part of the exhibition is dedicated to the growth of democracy and the Baden Revolution of 1848/49. It was here in Sinsheim´s historic town hall that the chemist Gustav Mayer declared a republic and then set off for Heidelberg with his 250 revolutionaries to support the Hecker uprising.