There is a great explanation of why Sumerians use 60 but I can't find the link. In a nutshell the theory is: Sumerians counted each segment of their fingers us

There is a great explanation of why Sumerians use 60 but I can't find the link. In a nutshell the theory is: Sumerians counted each segment of their fingers using their thumb as a pointer (thumb segments were not counted) three segments per finger. They could do that five times using each finger as a holding place, so 3 * 4 = 12 * 5 = 60