The trade and cultural ties to other countries of the world could be traced through the coins as old as 2000 years found in Sri Lanka. Among hoards of foreign coins found in the most unlikely places in the island such as Sigiriya, the site of the citadel of Kassayapa, the sleepy village of Kantharodai in Jaffna. Nearly 3000 Roman coins excavated nearthe Sīgiriya site suggest a Roman connection during early Christian era. Most of the coins found here belong to the period from Constantine the great (r. 306-337) to (Flavius) Honorius (reigned 393-423), which predate Kassapa (reigned ca 477-495) by nearly a century. The earliest Roman coin found in the region dates to about 317, nearly 150 years before Kassapa founded Sīgiriya. From the above evidence it is likely that Kassapa did not choose Sīgiriya by chance and it was already a hub of culture and trade. Some gold coins issued during the reign of King
Vijayabāhu currently exhibited at the British Museum, as well as in the Colombo Museum follow the types of Raja Raja Cholan when he was in possession of Pollonnaruva.
The relationship between the Tamils and the Sinhalese is also seen through the ancient coins in Sri Lanka. The The Mullaitivu coins (kahāpaṇas) as old as 200 BC arguably attributed to Eḷāra (Ellalan, bear a tree with branches (probably Sacred Bo Tree) on one face, and the bull (probably the Sacred Bull of the Hindus) suggesting that Eḷāra respected both religions. Mahāvaṃsa itself (XXI, 26) reveals the earliest date of kahāpaṇa (coins) in Lanka when Eḷāra spent 15,000 kahāpaṇas to repair a Buddhist stupa.
Known as Ceylon until it became a republic in 1972, the island had the most eye-catching colors of the Victorian Era in stamps.
Sri Lanka Post has a long history of 209 years, dating back to 1798, when the colonial Dutch rulers started five post offices in the Maritime Districts under their control. In 1799, they published the first postal regulations and postage rates. The Dutch East India Company operated the Postal service, which was not meant for the public but for official use.