Originally Posted by LITTLE NELL
The Cubs got to .514 probably from their good years before 1900 and also in the 20s and 30s. Since their last WS appearance in 1945 they have to be under .500 despite expansion. Without looking it up I would say that the Sox were over .500 before the first expansion in 1961 due to the years of the Go-Go teams of the 50s and before the 1919 scandal
That scandal sent the sox into a horrendous run of decades of irrelevance and losing. Looking at some of the records it's pretty bad, still they had some players like Lyons, Appling, etc.