
Around 1000
Sorben and Wenden inhabit the area around Kösen
1172
The Rudelsburg is first mentioned
1730
1st July:
The suspected salt source is found under management of Bergrat Borlach in the depth of 147 m
1731
The salt-works in Kösen start to produce
1779
The graduation house on the "Rechenberg" is built
1815
Kösen becomes Prussian
1817
Use of the salt for bath purposes
1826
Franz Kugler writes the song "An der Saale hellem Strande" on the Rudelsburg
1846
The first railway train drives by Kösen
1868
Kösen receives the city right
1925
Bad Kösen is connected to the gas net
1945
11.April: Invasion of American forces
1957
The animal park is opened
1967
Bad Kösen receives a swimming-pool
1991/92
Bad Kösen becomes "model city of tourism" in Saxony-Anhalt