Wright Brothers’ first flight, Nags Head, North CarolinaLibrary of Congress
Around the sixteenth century, there emerged in most of the European languages the term “design” or its equivalent. . . . Above all, the term indicated that designing was to be separated from doing.
MICHAEL COOLEY 
One of the most striking 20th-century developments in the design disciplines has been the progressive divorce of the designer from both the implementer and the user.
Consider the 19th- to turn-of-the-20th-century inventors. Edison fabricated working versions of all his inventions ...