1108. Sexagesimal (base 60): It originated with the ancient Sumerians in the 2000s BC, was transmitted to the Babylonians, and is still used—in modified form—for measuring time, angles, and geographic coordinates. ... Sexagesimal as used in ancient Mesopotamia was not a pure base 60 system, in the sense that it didn't use 60 distinct symbols for its digits...
(saith Wiki. The Mesopotamian "base 60" was notated using symbols for 10 and 1, but they counted 60 as a round number the way we count 100.)
TEAM SHIVAHNThe greatest obstacle to discovering the shape of the earth, the continents, and the oceans was not ignorance but the illusion of knowledge.
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-Daniel J. Boorstin (1914-2004)