While various civilizations and cultures around the world have been engaged in some form of betting for more than 3000 years, the point spread, or ‘betting line’, is a relatively new invention and has only been in use for the better part of 70 years. Its impact in this relatively short period of time is undeniable and as an un-named bookie quoted in a 1951 book by sports journalist Charles Rosen put it: The spread has easily been ‘the greatest discovery since the Zipper’. Wit…
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