The
rock edicts of the 3rd century BCE Indian emperor
Ashoka mention the word Tamraparni (as "
Tambapanni") in connection with his foreign missions. This seems to be a reference to Sri Lanka, as the Buddhist chronicles of Sri Lanka mention that a port city called Tammapanni was established there during the reign of the legendary king
Vijaya. The city was called "Tammena" during the reign of Vijaya's successor
Panduvasdeva and "Tammapanni" during the reign of Ashoka's missionary son
Mahendra. According to these chronicles, the place was so called because its dust stuck to Mahendra's skin, making him appear copper-coloured. The name was subsequently applied to the entire island of Sri Lanka. According to one theory, "
Taprobane", an ancient Greek name for
Sri Lanka, is derived from the word "Tamraparni".
Megasthenes, a Greek ambassador to Ashoka's grandfather
Chandragupta, describes Taprobane as being separated from the mainland by a river, and as being "more productive of gold and large pearls than India." This seems to be a reference to Sri Lanka. == As a name for the river ==