My suspicion is that once you have literacy in place, the readership has not changed very much.
Robert HassThere are instances: [Henry David] Thoreau read [John] Wordsworth, [John] Muir read Thoreau, Teddy Roosevelt read Muir, and you got national parks. It took a century for this to happen, for artistic values to percolate down to where honoring the relation of people's imagination to the land, or beauty, or to wild things, was issued in legislation.
Robert HassThe ideal of universal literacy, in the West anyway, was first of all a Protestant idea - that everybody had to be able to read to save their soul. That idea got transposed into an idea of the importance of literacy for democratic citizenship.
Robert HassSuch tenderness, those afternoons and evenings, saying blackberry, blackberry, blackberry.
Robert Hass