It is calculated on the basis of the supposed year of birth of the Tamil poet-philosopher Valluvar.
Valluvar was chosen as the Tamil language's greatest historical figure after Tamil scholars unanimously agreed to the proposal, chiefly owing to Valluvar's non-denominational work of the Tirukkural.
The first Thiruvalluvar Day was celebrated on 17 and 18 May 1935 in Chennai Pachaiappan College in the presence of Maraimalai Adigal, T.P.
[3][4] When Thiruvalluvar Day slowly went obsolete, Eelam Tamil scholar and politician K. P. Ratnam in 1954 took efforts to continue the celebration of the Thiruvalluvar Day in Tamil Nadu and foreign nations, chiefly Sri Lanka and Myanmar.
At the Madurai World Tamil Conference in 1981, the then Chief Minister, M. G. Ramachandran, issued a formal order for official use of the same in all government documents.