Complex sentence: Calumet Farm has a record history of Kentucky Derby and Triple Crown winners and though out it's long history of over 87 years, it has produced some of the greatest thoroughbred race horses of all time.
Split into simpler sentences: Calumet Farm has a record history of Kentucky Derby and Triple Crown winners. In Calumet's long history of over 80 years, it has produced some of the greatest thoroughbred race horses of all time.