Orville never complained to Wilbur about the workload at Kitty Hawk. ‘Workload’ is a fairly recently invented word. It seems to have originated in the 1940s as ‘work load’, allied to teaching load and case load. After a few years with a hyphen, it took its present form. In the dictionary, work means ‘physical or mental effort directed towards achieving something’, and workload now means ‘the amount o f work assigned to an individual for completion within a certain time’.