I want to know the answer to the following question:
The lower case letters caused a differ in the patter, what did this cause?
All the background I'm provided with is that "There was some debate at the time whether there should be more control characters rather than the lowercase alphabet.:435 The indecision did not last long: during May 1963 the CCITT Working Party on the New Telegraph Alphabet proposed to assign lowercase characters to columns 6 and 7, and International Organization for Standardization TC 97 SC 2 voted during October to incorporate the change into its draft standard.". Is that enough to answer the question?
Answer: no