Complex sentence: Sky blue was first used by Coventry in 1898, the sky blue theme was then used until 1922, the colour made its return in 1962 thanks to the then manager, Jimmy Hill.
Split into simpler sentences: Sky blue was first used by Coventry in 1898, the sky blue theme was then used until 1922. The colour made its return in 1962 thanks to the then manager, Jimmy Hill.