Who is tiruvalluvar?

Some articles on tiruvalluvar:

Puthandu - Controversy - Tiruvalluvar Era
... Government in Tamil Nadu also introduced the Tiruvalluvar era that begins with the purported birth of the Tamil literary figure Tiruvalluvar in the year 31 BCE ... The literary evidence however may not indicate an early date for Tiruvalluvar ... Scholar Vaiyapuri Pillai was of the view that Tiruvalluvar lived around 600 CE, based on the internal evidence of his work and the significant influence of Sanskrit, Prakrit and ...