Why is the Alabama's football team called the Crimson Tide?

The football team was called the Thin Red Line or some may know it as the Crimson White. During 1907 The University of Alabama played their rival Auburn in Birmingham, AL and the soil described as an iron rich color later turned into red mud and stained the Alabama football players white jerseys. It is known that Sports editor Hugh Roberts said the team played like a "Crimson Tide" and since then the name remained.