Question: Where was the capital before the place of birth of Nguyễn Huy Thiệp?

full_context: Document 1: Nguyễn Huy Hiệu: Colonel General Nguyễn Huy Hiệu (born 1947) is an officer of the Vietnam People's Army and current Deputy Minister of Defence of Vietnam. Enlisted in 1965, Nguyễn Huy Hiệu fought in various battlefields during Vietnam War, especially the Battle of Quảng Trị where he was appointed commander of battalion at the age of 23. Nguyễn Huy Hiệu began to hold the position of Deputy Minister of Defence in 1994.
Document 2: Auguste Henri Vildieu: Auguste Henri Vildieu was the French architectural adjutant in Hanoi while that city was an administrative center for the French colony of Indochina. Vildieu constructed several grand European-style buildings for the colonial government, including:
Document 3: Nguyễn Khải: Nguyễn Mạnh Khải, known as Nguyễn Khải (3 December 1930 – 15 January 2008) was a Vietnamese writer. Khải substantially rewrote and re-issued one of his early works, "Cái Thời Lãng Mạn" (Romantic Time 1987) as "Tầm Nhìn Xa" (Far Vision) after changing his mind about the views of small landholders.
Document 4: Leaders of the Vietnam War: Ho Chi Minh was the key figure and held the main leadership of North Vietnam during both wars in the country. He remained as a great source of inspiration for the Vietnamese who were fighting for a united Vietnam as in his wish after he officially stepped aside in 1965 and even after his death in 1969. The final offensive against Saigon -- the capital of South Vietnam in 1975 was named after him (the Ho Chi Minh Campaign). Vietnam was reunified under the Communist rule after the fall of Saigon in April 1975, nearly 30 years after Ho's declaration of independence and 6 years after his death. Soon after that, Saigon was renamed Ho Chi Minh city in honour of his vast contributions to Vietnam.
Document 5: Henri Huet: Henri Huet (4 April 1927 – 10 February 1971) was a French war photographer, noted for his work covering the Vietnam War for Associated Press (AP).
Document 6: Ho Chi Minh City: Ho Chi Minh City Thành phố Hồ Chí Minh Saigon or Sài Gòn Municipality Thành phố trực thuộc trung ương Clockwise, from left to right: Bến Thành Market, Ho Chi Minh City Hall, District 1 view from Saigon river, Municipal Theatre, Notre - Dame Cathedral Basilica of Saigon, Independence Palace Seal Nickname (s): Pearl of the Far East Location in Vietnam and Southern Vietnam Coordinates: 10 ° 46 ′ 36.8 ''N 106 ° 42 ′ 02.9'' E ﻿ / ﻿ 10.776889 ° N 106.700806 ° E ﻿ / 10.776889; 106.700806 Coordinates: 10 ° 46 ′ 36.8 ''N 106 ° 42 ′ 02.9'' E ﻿ / ﻿ 10.776889 ° N 106.700806 ° E ﻿ / 10.776889; 106.700806 Country Vietnam Central district District 1 Founded as Gia Định 1698 Renamed to Ho Chi Minh City 1976 Founded by Nguyễn Hữu Cảnh Divisions 19 Urban districts, 5 Suburban districts Government Type Special - class Secretary of Communist Party Nguyễn Thiện Nhân Chairman of People's Committee Nguyễn Thành Phong Chairman of People's Council Nguyễn Thị Quyết Tâm Area Total 2,096.56 km (809.23 sq mi) Elevation 19 m (63 ft) Population (2016) Total 8,426,100 Rank 1st Density 4,000 / km (10,000 / sq mi) GDP (PPP) (2015 estimate) Total US $127.8 billion Per capita US $15,977 GRDP (nominal) (2016) Total US $45.73 billion Per capita US $5,428 Time zone ICT (UTC + 07: 00) Area codes 8 (until 16 Jul 2017) 28 (from 17 Jun 2017) Website hochiminhcity.gov.vn
Document 7: Geography of Vietnam: Vietnam is located on the eastern margin of the Indochinese peninsula and occupies about 331,211.6 square kilometers, of which about 25% was under cultivation in 1987. It borders the Gulf of Thailand, Gulf of Tonkin, and Pacific Sea, alongside China, Laos, and Cambodia. The S - shaped country has a north - to - south distance of 1,650 kilometers and is about 50 kilometers wide at the narrowest point. With a coastline of 3,260 kilometers, excluding islands, Vietnam claims 12 nautical miles (22.2 km; 13.8 mi) as the limit of its territorial waters, an additional 12 nautical miles (22.2 km; 13.8 mi) as a contiguous customs and security zone, and 200 nautical miles (370.4 km; 230.2 mi) as an exclusive economic zone.
Document 8: The Things They Carried: The Things They Carried (1990) is a collection of linked short stories by American novelist Tim O'Brien, about a platoon of American soldiers fighting on the ground in the Vietnam War. His third book about the war, it is based upon his experiences as a soldier in the 23rd Infantry Division.
Document 9: History of Vietnam: After Quang Trung's death, the Tây Sơn dynasty became unstable as the remaining brothers fought against each other and against the people who were loyal to Nguyễn Huệ's infant son. Nguyễn Ánh sailed north in 1799, capturing Tây Sơn's stronghold Qui Nhơn. In 1801, his force took Phú Xuân, the Tây Sơn capital. Nguyễn Ánh finally won the war in 1802, when he sieged Thăng Long (Hanoi) and executed Nguyễn Huệ's son, Nguyễn Quang Toản, along with many Tây Sơn generals and officials. Nguyễn Ánh ascended the throne and called himself Emperor Gia Long. Gia is for Gia Định, the old name of Saigon; Long is for Thăng Long, the old name of Hanoi. Hence Gia Long implied the unification of the country. The Nguyễn dynasty lasted until Bảo Đại's abdication in 1945. As China for centuries had referred to Đại Việt as Annam, Gia Long asked the Manchu Qing emperor to rename the country, from Annam to Nam Việt. To prevent any confusion of Gia Long's kingdom with Triệu Đà's ancient kingdom, the Manchu emperor reversed the order of the two words to Việt Nam. The name Vietnam is thus known to be used since Emperor Gia Long's reign. Recently historians have found that this name had existed in older books in which Vietnamese referred to their country as Vietnam.
Document 10: France–Vietnam relations: French -- Vietnamese relations started as early as the 17th century with the mission of the Jesuit father Alexandre de Rhodes. Various traders would visit Vietnam during the 18th century, until the major involvement of French forces under Pigneau de Béhaine from 1787 to 1789 helped establish the Nguyễn Dynasty. France was heavily involved in Vietnam in the 19th century under the pretext of protecting the work of Catholic missionaries in the country. France progressively carved for itself a huge colony, which would form French Indochina in 1887. France continued to rule Vietnam as a colony until France's defeat in the First Indochina War and the proclamation of Vietnam's independence in 1954.
Document 11: North Vietnam: After about 300 years of partition by feudal dynasties, Vietnam was again under one single authority in 1802 when Gia Long founded the Nguyễn dynasty, but the country became a French protectorate after 1883 and under Japanese occupation after 1940 during World War II. Soon after Japan surrendered on September 2, 1945, the Việt Minh in the August Revolution entered Hanoi, and the Democratic Republic of Vietnam was proclaimed on September 2, 1945: a government for the entire country, replacing the Nguyễn dynasty. Hồ Chí Minh became leader of the Democratic Republic of Vietnam. U.S. President Franklin Roosevelt had spoken against French rule in Indochina, and U.S.A. was supportive of the Viet Minh at this time.
Document 12: French Indochina: A grouping of the three Vietnamese regions of Tonkin (north), Annam (centre), and Cochinchina (south) with Cambodia was formed in 1887. Laos was added in 1893 and the leased Chinese territory of Guangzhouwan in 1898. The capital was moved from Saigon (in Cochinchina) to Hanoi (Tonkin) in 1902 and again to Da Lat (Annam) in 1939. In 1945 it was moved back to Hanoi.
Document 13: Military history of the United States: The Vietnam War was a war fought between 1959 and 1975 on the ground in South Vietnam and bordering areas of Cambodia and Laos (see Secret War) and in the strategic bombing (see Operation Rolling Thunder) of North Vietnam. American advisors came in the late 1950s to help the RVN (Republic of Vietnam) combat Communist insurgents known as "Viet Cong." Major American military involvement began in 1964, after Congress provided President Lyndon B. Johnson with blanket approval for presidential use of force in the Gulf of Tonkin Resolution.
Document 14: Nguyễn Huy Thiệp: Nguyễn Huy Thiệp (Hanoi, 29 April 1950-) is a Vietnamese writer. He has been described as Vietnam's most influential writer. In 1992, before Bảo Ninh (1993) and Dương Thu Hương (1996), he was the first to write a major novel taking the gloss off the "American War" experience.
Document 15: Leaders of the Vietnam War: Ho Chi Minh whose real name is Nguyen Sinh Cung and also known as Nguyen Tat Thanh and Nguyen Ai Quoc was a Vietnamese revolutionary leader following the path of communism.
ground_truth: Saigon
sub_queries: Nguyễn Huy Thiệp >> place of birth Answer: Hanoi
Where was the capital before Hanoi ? Answer: Saigon