Corn flakes (1890)

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   OED and Merriam-Webster have "corn flake" from 1907.  The Battle Creek Toasted Corn Flake Company was supposedly established in 1906, although John Harvey Kellogg served cornflakes before this.  But not this early.
   From the AMERICAN PERIODICAL SERIES online:


   24 May 1890, SCIENTIFIC AMERICAN, pg. 333:
_INDEX OF INVENTIONS_
For which Letters Patent of the United States were granted May 6, 1890
(...)
Hominy flakes or corn flakes, manufacturing, J. A. Currie...427,150

   7 March 1891, SCIENTIFIC AMERICAN, pg. 154:
   HOMINY FLAKES, ETC.--Jeremiah H. Little, Yellow Springs, Ohio.  This invention covers an improved means of manufacturing hominy and corn flakes, while preserving theirflavor, form and consistency, there being combined with the cooking vessel crushing rolls, a casing, a drying chamber, with shaking screens and a trough-like bottom, and means for forcing a hot air blast upward into the chamber.