Question: When did the country where Seenigama is located leave the British Empire?

full_context: Document 1: Senate of Ceylon: The Senate was the upper chamber of the parliament of Ceylon (now Sri Lanka) established in 1947 by the Soulbury Commission. The Senate was appointed and indirectly elected rather than directly elected. It was housed in the old Legislative Council building in Colombo Fort and met for the first time on 12 November 1947. The Senate was abolished on 2 October 1971 by the eighth amendment to the Soulbury Constitution, prior to the adoption of the new Republican Constitution of Sri Lanka on 22 May 1972. In 2010 there were proposals to reintroduce the Senate.
Document 2: Vaddukkoddai West: Sivan koviladi is a small town in Sri Lanka. It is located within Northern Province.This Small town famous to Cultural Dances & Hindu rituals.
Document 3: Suvisuddharamaya: The Sri Suvisuddharamaya Temple is a Buddhist temple which is located in the North-Western province, Manakkulama, in Sri Lanka. The website www.saddha.org has noted:
Document 4: Second Sirimavo Bandaranaike cabinet: The Second Sirimavo Bandaranaike cabinet was the central government of Ceylon led by Prime Minister Sirimavo Bandaranaike between 1970 and 1977. It was formed in May 1970 after the parliamentary election and it ended in July 1977 after the opposition's victory in the parliamentary election. The second Sirimavo Bandaranaike cabinet saw Ceylon severing the last colonial ties with Britain as the country became a parliamentary republic in May 1972. The country was also renamed Sri Lanka.
Document 5: Maddegama: Maddegama is a village in the western province, Sri Lanka of Sri Lanka. It is located next to the Kirindiwela-Hanwella road.
Document 6: Seenigama: Seenigama or Seenigama Devol is a village on the south coast of Sri Lanka. It is located in the Southern Province, about north-west of Galle. Seenigama is known for a temple dedicated to Devol, a deity in Sinhala Buddhist mythology.
Document 7: History of India: From 1920 leaders such as Mahatma Gandhi began highly popular mass movements to campaign against the British Raj using largely peaceful methods. The Gandhi-led independence movement opposed the British rule using non-violent methods like non-cooperation, civil disobedience and economic resistance. However, revolutionary activities against the British rule took place throughout the Indian subcontinent and some others adopted a militant approach like the Indian National Army that sought to overthrow British rule by armed struggle. The Government of India Act 1935 was a major success in this regard. All these movements succeeded in bringing independence to the new dominions of India and Pakistan on 15 August 1947.
Document 8: Okanda: Okanda () is a small hamlet in the eastern coast of Sri Lanka within the Ampara District. It is known for its shrine dedicated to Hindu deity Murugan known as Ukanthamalai Murugan Kovil and for surfing. Pilgrims from the Eastern Province and the Northern Province stop over at the Okanda Murugan temple on their Murugan Pada Yatra voyage to Kataragama temple in the Southern part of the island.
Document 9: Kottu Vassal Amman Kovil: Kottu Vassal Amman Kovil is a Hindu temple located in the Northern town Point-Pedro, Sri Lanka. This temple is also known as Sandika Parameswari Amman Kovil.
Document 10: D. S. Senanayake: Don Stephen Senanayake (; ; 21 October 1883 – 22 March 1952) was a Sri Lankan statesmen. He was the first Prime Minister of Sri Lanka having emerged as the leader of the Sri Lankan independence movement that led to the establishment of self-rule in Sri Lanka. He is considered as the "Father of the Nation".
Document 11: Sri Lankan independence movement: The Sri Lankan independence movement was a peaceful political movement which aimed at achieving independence and self - rule for Sri Lanka, then Ceylon, from the British Empire. It was initiated around the turn of the 20th century and led mostly by the educated middle class. It succeeded when, on February 4, 1948, Ceylon was granted independence as the Dominion of Ceylon. Dominion status within the British Commonwealth was retained for the next 24 years until May 22, 1972 when it became a republic and was renamed the Republic of Sri Lanka.
Document 12: Dominion of Ceylon: Between 1948 and 1972, Ceylon was an independent country in the Commonwealth of Nations that shared a monarch with Australia, Canada, New Zealand and the United Kingdom, and certain other sovereign states. In 1948, the British Colony of Ceylon was granted independence as Ceylon. In 1972, the country became a republic within the Commonwealth, and its name was changed to Sri Lanka. It was an island country in South Asia, located about 31 kilometres (19.3 mi) off the southern coast of India.
Document 13: S. Mahinda: S. Mahinda arrived in Ceylon (now Sri Lanka) at a young age and was ordained as a Buddhist monk. Having learned the Sinhala language, he became a poet, creating several literary works inspiring patriotism among the Sinhalese and urging them to fight for their freedom during Sri Lankan Independence movement.. He is now considered a national hero of Sri Lanka and one among the greatest of Sinhalese poetry figures of all time.
Document 14: Bentota: Bentota is a coastal town in Sri Lanka, located in the Galle District of the Southern Province, governed by an Urban Council. It is approximately south of Colombo and north of Galle. Bentota is situated on the southern bank of the Bentota River mouth, at an elevation of above the sea level. The name of the town is derived from a mythical story which claims a demon named 'Bem' ruled the tota or river bank.
Document 15: British Empire: Britain's remaining colonies in Africa, except for self-governing Southern Rhodesia, were all granted independence by 1968. British withdrawal from the southern and eastern parts of Africa was not a peaceful process. Kenyan independence was preceded by the eight-year Mau Mau Uprising. In Rhodesia, the 1965 Unilateral Declaration of Independence by the white minority resulted in a civil war that lasted until the Lancaster House Agreement of 1979, which set the terms for recognised independence in 1980, as the new nation of Zimbabwe.
ground_truth: February 4, 1948
sub_queries: Seenigama >> country Answer: Sri Lanka
when did Sri Lanka leave the british empire Answer: February 4, 1948