Sri Lanka's recent history has been marred by a 30-year civil war, which decisively ended when the Sri Lanka Armed Forces defeated the Liberation Tigers of Tamil Eelam (LTTE) in 2009.
The next invasion came immediately in 205 BC by a Chola king named Ellalan, who overthrew Asela and ruled the country for 44 years.
Dutugemunu, the eldest son of the southern regional sub-king, Kavan Tissa, defeated Elara in the Battle of Vijithapura.
Sri Lanka's documented history spans 3,000 years, with evidence of pre-historic human settlements dating back to at least 125,000 years.).
A nationalist political movement arose in the country in the early 20th century to obtain political independence, which was granted in 1948; the country became a republic and adopted its current name in 1972.
Ancient cemeteries that were used before 600 BC and other signs of advanced civilization has also been discovered in Sri Lanka.