The Evolution of ITIL

Nice timeline and overview.

Originally known as GITMM (Government Infrastructure Management Method), ITIL dates as far back as the early 20th Century when BMT signed an agreement with TMC (later known as IBM). As technology improved, ITIL has developed into a set of best practices that are known worldwide throughout the IT Service Management sector.
 ITIL was an attempt to document a set of standard best practices that government agencies and private sectors alike could adhere to and which would help unify the system, reduce costs and be the basis for a training curriculum.

The Evolution of ITIL