It was also the leading exporter of cinnamon in the ancient world.It maintained close ties with European civilisations including the Roman Empire.
Sri Lankan Bhikkhus studied in India's famous ancient Buddhist University of Nalanda, which was destroyed by Bakhtiyar Khilji.
For example, Bhatikabhaya (22 BCE – 7 CE) sent an envoy to Rome who brought back red coral, which was used to make an elaborate netlike adornment for the Ruwanwelisaya.
In addition, Sri Lankan male dancers witnessed the assassination of Caligula.
The Sigiriya rock fortress is surrounded by an extensive network of ramparts and moats.
Inside this protective enclosure were gardens, ponds, pavilions, palaces and other structures.