Sangam period (Tamil: சங்ககாலம், Sangakālam ?) is the period in the history of ancient Tamil Nadu (known as the Tamilakam) spanning from c. 4th century BC to c. 2nd century AD. It is named after the famous Sangam academies of poets and scholars centered in the city of Madurai.
In Old Tamil language, the term Tamilakam (Tamiḻakam தமிழகம், Purananuru 168. 18) referred to the whole of the ancient Tamil-speaking area, corresponding roughly to the area known as southern India today, consisting of the territories of the present-day Indian states of Tamil Nadu, Kerala, parts of Andhra Pradesh, parts of Karnataka and northern Sri Lanka also known as Eelam.
According to Tamilian legends, there were three Sangam periods, namely Head Sangam, Middle Sangam and Last Sangam period. Historians use the term Sangam period to refer the last of these, the first two being legendary. So it is also called Last Sangam period (Tamil: கடைச்சங்க பருவம், Kaṭaissanka paruvam ?), or Third Sangam period (Tamil: மூன்றாம் சங்க பருவம், Mūnṟām sanka paruvam ?). The Sangam literature is thought to have been produced in three Sangam academies of each period. The evidence on the early history of the Tamil kingdoms consists of the epigraphs of the region, the Sangam literature, and archaeological data.