Complex sentence: According to the book "The Marathon Makers" by John Bryant, the first mile of the 1908 Olympic Marathon course was remeasured in recent years and found to be 174 yards (159 m) short.
Split into simpler sentences: According to the book "The Marathon Makers" by John Bryant, the 1908 Olympic Marathon course was incorrectly measured. The course was remeasured in recent years and the first mile was 174 yards (159 m) short.