Budha Shivalli (ca.1980-81) had collected some data on the evolution of Kannada script through the ages mainly based on the study of inscriptions. The data was presented in a tabular diagram shown here. The diagram has also been published in the book ‘Tulu Patero’.
The diagram shows six stages of evolution:
1. Later Harapa period (ca.1600 BC).
2. Brahmi script of Asoka’s period. (ca. 300BC).
3. Proto Kannada. ca. 500AD
4. Old Kannada. ca.600-800 AD
5. Middle Kannada. ca.800AD
6. Modern Kannada. (Present).
The serial numbers 1 to 6 are shown in pink color in the diagram. The data provided may be slightly out of date, about 27 year old. Nevertheless, the data may be useful for studies and comparison with Tulu and other scripts.
Readers having new additional data may contribute the relevant information here.