Wichita Eagle building says something

on

Wichita Eagle Building detailDetail of Wichita Eagle building on East Douglas. (For a larger version, click on the photo, then click on “All sizes.”)

The Wichita Eagle building is saying something to me, but I can’t quite figure out what.

In a series of four tiles facing Douglas Avenue, it appears that the history of mass communications is described. But I’m not sure of the precise meaning of each diagram. Can someone help?