Key Facts
- Duration
- 437 BC – 1017 AD
- Founded by
- King Pandukabhaya, 437 BC
- Religion
- Theravada Buddhism (introduced under Devanampiya Tissa)
- Notable structure
- Jetavana stupa, one of the tallest ancient structures
- Key achievement
- Extensive irrigation network across the Rajarata dry zone
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
According to the Mahavamsa, King Pandukabhaya founded the kingdom in 437 BC with authority extending across Sri Lanka. The early kingdom consolidated Sinhalese political identity around the city of Anuradhapura. A transformative shift came under King Devanampiya Tissa, when Buddhism was introduced, reshaping governance, law, and culture and establishing the kingdom as a center of Theravada Buddhist civilization in South Asia.
Phase II: Zenith
At its height, the kingdom sustained a sophisticated agricultural economy through large-scale irrigation works, most notably the reservoirs and canals constructed by kings Vasabha and Mahasena. Monumental stupas such as the Ruwanwelisaya and Jetavana, the Lovamahapaya palace complex, and the rock fortress paintings at Sigiriya demonstrated advanced engineering and artistic achievement. The kingdom also projected power externally, with King Sena II's forces sacking Madurai in 862 AD.
Phase III: Decline
The kingdom endured repeated invasions by South Indian powers throughout its history, requiring rulers such as Dutthagamani, Valagamba, and Dhatusena to reunify the island by force. Sustained pressure from the Chola Empire and internal instability gradually weakened central authority. By 1017 AD, a Chola invasion overran Anuradhapura, ending the kingdom and shifting the political center of Sri Lanka southward to Polonnaruwa under the Polonnaruwa Kingdom.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory