"The Methods of Industrial Management. — A committee of the American Society of Mechanical Engineers made an extensive canvass in the fall of 1912 to determine what were the new elements in modern management as well as what the committee designated as the regulative principles of industrial management. The committee confirmed Adam Smith's statement made in 1776 in his Wealth of Nations, in which he held that the application of the principle of division of labor was the basis of manufacture..."
January 1, 1970
https://en.wikiquote.org/wiki/Division_of_labor