The Sri Lanka Riots: Targeting the minority Sri Lankan Tamils, begin, less than a month after the United National Party came to power. Over 300 Tamils are killed.

The 1977 anti-Tamil pogrom in Sri Lanka followed the 1977 general elections in Sri Lanka where the Sri Lankan Tamil nationalistic Tamil United Liberation Front won a plurality of minority Sri Lankan Tamil votes. In the elections, the party stood for secession. An official government estimate put the death toll at 125, whereas other sources estimate that around 300 Tamils were killed by Sinhalese mobs. Human rights groups, such as the UTHR-J, accused the newly elected UNP-led government of orchestrating the violence.

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian peninsula by the Gulf of Mannar and the Palk Strait. It shares a maritime border with the Maldives in the southwest, India in the northwest, Andaman and The Nicobar Islands in the northwest, and Myanmar through the Bay of Bengal. Sri Jayawardenepura Kotte is the legislative capital of Sri Lanka, while the largest city, Colombo, is the administrative and judicial capital which is the nation's political, financial and cultural centre. Kandy is the second-largest urban area and also the capital of the last native kingdom of Sri Lanka. The most spoken language Sinhala, is spoken by the majority of the population. Tamil is also spoken by approximately five million people, making it the second most-spoken language in Sri Lanka.

The Tamils, also known by their endonym Tamilar, are a Dravidian ethnic group who natively speak the Tamil language and trace their ancestry mainly to the southern part of the Indian subcontinent. The Tamil language is one of the longest-surviving classical languages, with over two thousand years of written history, dating back to the Sangam period. Tamils constitute about 5.7% of the Indian population and form the majority in the South Indian state of Tamil Nadu and the union territory of Puducherry. They also form significant proportions of the populations in Sri Lanka (15.3%), Malaysia (7%) and Singapore (5%). Tamils have migrated world-wide since the 19th century CE and a significant population exists in South Africa, Mauritius, Fiji, as well as other regions such as the Southeast Asia, Middle East, Caribbean and parts of the Western World.