Why {and how} was Y Invented?

The History of the Letter ‘Y’ In Latin, the letter “Y’ was named Y Graeca (pronounced ee-grayka) which literally means “Greek Y”. It was named this because the sound it made (“similar to modern German ü or French u”) wasn’t a native sound for Latin speakers. It was usually only used for foreign words. {in Middle English it was ‘wi’ /wiː/, which through the Great Vowel Shift became the Modern English ‘wy’ /waɪ/.} (Source: Wikipedia) <a href="https://medium.com/@jonhudson.main/why-and-how-was-y-invented-1af10f481b0c">Click Here</a>