1878: Founded by animal trader Carl Froese in Königsberg as Barums amerikanische Karawanen-Menagerie.
1907: Carl Froese died.
1907: Carl Froese daughter took over with her husband, the animal trainer Arthur Kreiser.
1935: Their daughter Margarete Kreiser-Barum took over the show.
1972: Margarete Kreiser-Barum sold the circus to the famous animal trainer Gerd Simoneit, who had started as animal keeper at Circus Williams 1946, 15 years old..
2008: closed down.
After the circus closed, his daughter Rebecca Simoneit-Barum took over some animals to her Event-Agentur Barum and Bauer Performance.