1940s Origins of OR development
   Real practical operational problems
   Lack of methodology / computing power
1950s Development of OR methods (eg LP) and computers
   50th birthday of Simplex method
1950s/1960s Growth of OR programmes in acadamia
   Reduced focus on problems of the real world
   Development of theory for publications sake
How many papers in an issue of Operations Research will have any impact in the real world??