Evolution of the Sinhala Script
Sinhala script had derived from Brahmi script that had given rise to almost all North and South Indian Scripts.
In the older tradition, Brahmi has been classified into two subgroups namely Northern Brahmi and Southern Brahmi and Sinhala script, though the spoken language has its origins to North India, had derived from the Southern Brahmi tradition.
Southern Brahmi had given birth to Tamil. Kannada, Telugu, Malayalam, and these languages are categorized as Dravidian languages as opposed to Sinhala which belongs to the Indo-European family of languages. With Sinhala, all most all North Indian languages namely Hindi, Gujarati, Marathi, Bengali, etc. belong to the Indo-Aryan subgroup of the Indo European language group. Brahmi had been used in Sri Lanka to write rock inscriptions from 3rd CBE to 2nd CE and there is carbondated evidence from potsherds found in ancient burial sites, some letters similar looking to Brahmi had been inscribed on pottery eight hundred years before the arrival of Vijaya in Sri Lanka.
Tamil Brahmi inscriptions also had been found in the Anuradhapura period in parallel to Sinhala Brahmi.
PallavaGrantha and East Asian Scripts
Sinhala script began evolving from Brahmi from 1 CE onwards and by the Sigiri period, Sinhala script had two new letters for vowels, Ae ( ) and Ae: ( ) which are not found in the other Indic Languages. Shapes of Sinhala letters had also
begun showing clear demarcation from Brahmi becoming round or circular providing evidence for Ola writing since the early first century. In the fourth century, Sinhala script was under the influence of PallavaGrantha which also influenced East Asian, scripts such as Khmer, Old Malay, and Javanese, etc. due to close connections established between these countries with the Pallava Kingdom through trading. Subsequently,
Khmer gave rise to the present Thai script.
It is also speculated that Sri Lankan monks who also had a hand in the development of the Thai Script. It is also amazing to find that East Asian scripts have glyphs for both Ae ( ) and Ae: ( ) providing a possible clue to the connection Sinhala script had in the development of East Asians scripts after the demise of Pallava Kingdom. Figure 1 shows the Khmer script.
Unicode is not an alphabet but only an encoding
In the previous articles that had been written by me, I had introduced the main concepts of the Unicode of having every character encoded in Unicode by a unique two-byte code point. As I mentioned in my articles on Sinhala Unicode that a Unicode code point that represents a Sinhala letter can coexist with any other code points of letters of different languages in a single document when stored in Unicode.
On the contrary to popular belief, Unicode Charts are merely encodings and are not digital alphabets. In other words, the main objective of Unicode Charts is tomap a character in an alphabet to a number in hexadecimal providing that character to be stored in a memory location in a digital device for subsequent retrieval and manipulations.