The History of Sri Lanka begins around 30,000 years ago when the island was first inhabited. Chronicles, including the Mahawansa, the Dipavamsa, the Culavamsa and the Rajaveliya, record events from the beginnings of the Sinhalese monarchy in the 6th century BC; through the arrival of European Colonialists in the 16th century; and to the disestablishment of the monarchy in 1815. Some mentions of the country are found in the Ramayana, the Mahabharata and the books of Gautama Buddha's teachings. Buddhism was introduced in the 3rd century BC by Arhath Mahinda (son of the Indian emperor Ashoka the Great).

From the 16th century some coastal areas of the country were ruled by the Portuguese, Dutch and British. Sri Lanka was ruled by 181 kings from the Anuradhapura to Kandy periods. After 1815 the entire nation was under British colonial rule and armed uprisings against the British took place in the 1818 Uva Rebellion and the 1848 Matale Rebellion. Independence was finally granted in 1948 but the country remained a Dominion of the British Empire.

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka (ⁱ/ʃriː ˈlɑːŋkə/, /sriːˈlɑːŋkə/, or /sriːˈlæŋkə/;Sinhala: ශ්‍රී ලංකාව, Tamil: இலங்கை), is a country off the southern coast of the Indian subcontinent in South Asia. Known until 1972 as Ceylon ( /sɨˈlɒn/, /seɪˈlɒn/, or /siːˈlɒn/), Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar, the Palk Strait, and lies in the vicinity of India and the Maldives.

As a result of its location in the path of major sea routes, Sri Lanka is a strategic naval link between West Asia and South East Asia. It was an important stop on the ancient Silk Road. Sri Lanka has also been a center of the Buddhist religion and culture from ancient times, being the nation where the Buddhist teachings were first written down as well as the oldest continually Buddhist country. Sri Lanka boasts a diverse range of cultures, languages and religions. The Sinhalese people form the majority of the population; Tamils, who are concentrated in the north and east of the island, form the largest ethnic minority. Other communities include Moors, Burghers, Kaffirs, Malays and the aboriginal Vedda people.