Fill in the response. DIALOG:
Person X: What is the main club of the BSC Rehberge Berlin?;
Person Y: BSC Rehberge Berlin Rehberge Berlin is a German association football club from the city of Berlin.;
Person X: When was the main club formed?;
Person Y: It was established in the aftermath of World War II on 1 June 1945 as "Sportgruppe Rehberge Berlin" and formed a football department on 11 August 1945 when joined by the former memberships of "Berliner Fußball-Club Colombia 1935" and "Sportverein Helios 1919 Berlin".;
Person X: Are there any other interesting aspects about this article?;
Person Y: 
On 3 April 1947, "SG" was renamed "BFC Rehberge Berlin" and on 5 October 1951 merged with "Sportclub Rehberge", which was established just two years earlier in June 1949. Through the 1950s, the Rehberge side was part of the Amateurliga Berlin (II) where they enjoyed their best seasons in 1953–55 when they earned a pair of 4th-place results.