THE HISTORY OF DYSLEXIA
& THE SCIENCE OF READING
Between 8000 and 4000 BCE
The written language is invented on little pieces of clay, no larger than a quarter that formed some kind of accounting system used across many parts of the ancient world.
The reading and spelling difficulties characteristic of dyslexia today were first identified by Adolph Kussmaul, a German Professor of Medicine. Termed 'word blindness', such difficulties were believed (incorrectly) to stem from some form of ocular deficit.
Paper published by Jonathan B. Demb, Geoffrey M. Boynton and David J. Heeger entitled Functional Magnetic Resonance Imaging of Early Visual Pathways in Dyslexia documenting the use of fMRI imaging to trace dyslexia in the brain.