The attempt to find a way to express one's thoughts to distant people began with the discovery of the writing system. Attempts to express ideas by drawing first. But only concrete can be expressed with images, not abstract. So this is the beginning of the attempt to discover the symbolic sign as a representative of the idea or consonant, which is ultimately achieved through the discovery of the alphabet. Almost all the scripts of the world have originated from a single original script. And the name of this script is Finnish script. The ancient Phoenicians first invented the consonant. The Greeks added vowels, from which the modern European alphabet originated. But the writing system of scripts and numerology in India and Bengal has unique features.

Bangla script has evolved from Brahmi script. Brahmi is the oldest and most widely used script in India. It is unknown at this time what he will do after leaving the post. Many have tried to find a link between the Indus script and this script. According to some, the script came from outside India. Why this script is called Brahmi cannot be said to be correct. Some people say that the name of this script is Brahmi because it is derived from Brahma. Again, some people think that this script has got the definition of Brahmi as it is the script of Brahmins. The earliest evidence of Brahmi is found in the Pripraba Stupa in the Terai region of Nepal. The Pripraba inscription is engraved on a box. The bones of Buddha were kept in this vessel. From this it is thought that this inscription dates back to the time of Buddha's Nirvana. Engraved shortly after 47. However, Brahmi is widely used in the inscriptions and pillar inscriptions of the Mauryan emperor Ashoka. There are many mature and complete forms of Brahmi in Ashoka's script, which suggests that the Brahmi characters evolved from the earliest times to the stage of Ashoka's script. 1838 A British scholar named James Prinsep was able to decipher the Brahmi. And from the Brahmi source it is possible to decipher the ancient scripts of different parts of India. In the late nineteenth century and throughout the first half of the twentieth century, one by one, the ancient scripts of the Bengal region began to be deciphered, from which it became possible to know the continuous history of the evolution of the Bengali script.