I don't think we have to go back even this far. If I recall correctly, even 150 years ago the vast majority of the world's population were subsistence farmers. It's only been since the 20th century and the increasing spread of the industrial revolution that the situation has changed:
Even England remained primarily an agrarian country like all tributary societies for the previous 4,000 years, with ca. 50 percent of its population employed in agriculture as late as 1759.
--David Christian, Maps of Time (pp 401) quoting from Crafts, British Economic Growth, pp. 13–14.
(See also Fig 13.1 Global Industrial Potential from the same, for a graphical indicator.