In an interview with Devon Zeugel, Stu Card mentions that lower case had to be invented, and that it had the benefit of increasing reading speed: The Carolingian Renaissance invented small letters. Those small letters put together with the capitals allowed words to have shapes. They could be then read in faster speed. Now, I think the usability theory here is disputed,1 [1 See Kevin Larson via Susan Weinschenk.] and the history is not quite right2 [2 Stu seems to be referring to Carolingian m...
