Wikipedia
Tamiḻakam (Home of Tamil), ( Tamil: தமிழகம், Tamiḻakam), refers to the geographical region inhabited by the ancient Tamil people. Tamilakam covered today Tamil Nadu, Kerala, Puducherry, Lakshadweep and southern parts of Andhra Pradesh and Karnataka. Traditional accounts and Tholkāppiyam referred these territories as a single cultural area, where Tamil was the natural language and culture of all people. The ancient Tamil country was divided into kingdoms. The best known among them were the Cheras, Cholas, Pandyans and Pallavas. Archaeological data from proto-historic Kerala and Tamil Nadu "appears to challenge the notion of a separate culture region". During the Sangam period, Tamil culture began to spread outside Tamilakam. Ancient Tamil settlements were also found in Sri Lanka ( Sri Lankan Tamils) and Maldives ( Giravarus).