Question: When did the country whose capital is Christ Bongo's birthplace become independent?

full_context: Document 1: Ngandu Kasongo: Cyrille Kasongo Ngandu Nzembele (born 6 December 1979 in Kinshasa) is a Congolese football player, who currently plays for TP Mazembe.
Document 2: Republic of the Congo: Congo is located in the central-western part of sub-Saharan Africa, along the Equator, lying between latitudes 4°N and 5°S, and longitudes 11° and 19°E. To the south and east of it is the Democratic Republic of Congo. It is also bounded by Gabon to the west, Cameroon and the Central African Republic to the north, and Cabinda (Angola) to the southwest. It has a short coast on the Atlantic Ocean.
Document 3: Christ Bongo: Christ Bongo-Zanoni (born 11 August 1976 in Kinshasa) is a former Congolese football player. He has played for SV Wilhelmshaven, Hannover 96, Gazélec Ajaccio, FC Aarau, FC Schaffhausen, FC Solothurn, FC Thun and FC 105 Libreville.
Document 4: Republic of the Congo: The southwest of the country is a coastal plain for which the primary drainage is the Kouilou-Niari River; the interior of the country consists of a central plateau between two basins to the south and north. Forests are under increasing exploitation pressure.
Document 5: Republic of the Congo: The capital, Brazzaville, is located on the Congo River, in the south of the country, immediately across from Kinshasa, the capital of the Democratic Republic of the Congo.
Document 6: Jean-Santos Muntubila: He played for AS Bilima Kinshasa, FC Sochaux-Montbéliard, Olympique de Marseille, 1. FC Saarbrücken, SC Bastia, US Valenciennes and ESA Brive.
Document 7: Zaire: Zaire (/ zɑːˈɪər /), officially the Republic of Zaire (French: République du Zaïre; French pronunciation: ​ (za. iʁ)), was the name for the Democratic Republic of the Congo that existed between 1971 and 1997 in Central Africa. The country was a one - party totalitarian dictatorship, run by Mobutu Sese Seko and his ruling Popular Movement of the Revolution party. Zaire was established following Mobutu's seizure of power in a military coup in 1965, following five years of political upheaval following independence known as the Congo Crisis. Zaire had a strongly centralist constitution and foreign assets were nationalised. The period is sometimes referred to as the Second Congolese Republic.
Document 8: History of the Democratic Republic of the Congo: After an uprising by the Congolese people, Belgium surrendered to the independence of the Congo in 1960. However, the Congo remained unstable because tribal leaders had more power than the central government. Prime Minister Patrice Lumumba tried to restore order with the aid of the Soviet Union as part of the Cold War, causing the United States to support a coup led by Colonel Joseph Mobutu in 1965. Mobutu quickly seized complete power of the Congo and renamed the country Zaire. He sought to Africanize the country, changing his own name to Mobutu Sese Seko, and demanded that African citizens change their Western names to traditional African names. Mobutu sought to repress any opposition to his rule, in which he successfully did throughout the 1980s. However, with his regime weakened in the 1990s, Mobutu was forced to agree to a power - sharing government with the opposition party. Mobutu remained the head of state and promised elections within the next two years that never took place.
Document 9: US Tshinkunku: Union Sportive (US) Tshinkunku' is a football club in Kananga, Kasai Central province, Democratic Republic of Congo.[1] They play in the Linafoot, the top level of professional football in DR Congo. They play at 20,000 capacity Stade des Jeunes.[1]. Tshinkunku had their first major success in 1985, when they won the National Championship Cup called Cup of Zaire (Coupe du Zaire) when Georges Mwanza Mande, alias Tshikem was the club president. In 2011, Trésor Kapuku, then the governor of Kasai Occidental brought second title back to the province when he was the President of US Tshinkunku Club.In January 2014 the governor of then Kasai Occidental Alex Kande Mupompa was elected as the new club President, two years later the club performed badly in the league and many fans were not happy with the management committee performance. Alexy Kayembe De Bampende a long-time fan and a US based businessman who lives in Texas invited Georges Mwanza Tshikem to come to rebuild the team. Tshikem went to Kananga where he organized the team and the election for management committee. On 4 December 2016, club fans and players elected Georges Mwanza Mande, alias Tshikem as club president and Alexy Kayembe De Bampende was elected Vice President of Union Sportive Tshinkunku. Tshikem-Kayembe's vision is to make Tshinkunku a competitive club in national and International level. So far they managed to recruit Congolese qualified coaches to manage the team. Eric Tshibasu, the under-20 DR Congo national team was hired as a team club coach and was fired three months later, Kayembe approached Jean Claude Mukanya, the former DR Congo National team captain to become US Tshinkunku Manager. Mukanya signed a three year contract in Kinshasa on 3 July 2017 in front of hundreds of Kinshasa based US Tshinkunku fans.
Document 10: Republic of the Congo: The Republic of the Congo's sparse population is concentrated in the southwestern portion of the country, leaving the vast areas of tropical jungle in the north virtually uninhabited. Thus, Congo is one of the most urbanized countries in Africa, with 70% of its total population living in a few urban areas, namely in Brazzaville, Pointe-Noire or one of the small cities or villages lining the 534-kilometre (332 mi) railway which connects the two cities. In rural areas, industrial and commercial activity has declined rapidly in recent years, leaving rural economies dependent on the government for support and subsistence.
Document 11: Republic of the Congo: The Republic of the Congo received full independence from France on August 15, 1960. Fulbert Youlou ruled as the country's first president until labour elements and rival political parties instigated a three-day uprising that ousted him. The Congolese military took charge of the country briefly and installed a civilian provisional government headed by Alphonse Massamba-Débat.
Document 12: Joseph Kabila: On 28 March 2004, an apparent coup attempt or mutiny around the capital Kinshasa, allegedly by members of the former guard of former president Mobutu Sese Seko (who had been ousted by Kabila's father in 1997 and died in the same year), failed. On 11 June 2004, coup plotters led by Major Eric Lenge allegedly attempted to take power and announced on state radio that the transitional government was suspended, but were defeated by loyalist troops.
Document 13: Republic of the Congo: The region was dominated by Bantu-speaking tribes, who built trade links leading into the Congo River basin. Congo-Brazzaville was formerly part of the French colony of Equatorial Africa. Upon independence in 1960, the former colony of French Congo became the Republic of the Congo. The People's Republic of the Congo was a Marxist–Leninist one-party state from 1970 to 1991. Multi-party elections have been held since 1992, although a democratically elected government was ousted in the 1997 Republic of the Congo Civil War and President Denis Sassou Nguesso has ruled for 26 of the past 36 years.
Document 14: Christian Maicon Hening: Christian Maicon Hening (born 25 August 1978 in Blumenau, Brazil), better known under the nickname "Chris", is a professional Brazilian footballer who last played for TSG 1899 Hoffenheim. He formerly played for Eintracht Frankfurt from 2003 to 2011, and was named club captain prior to the 2010–11 season.
Document 15: Republic of the Congo: The Republic of the Congo (French: République du Congo), also known as Congo, Congo Republic, West Congo[citation needed], or Congo-Brazzaville, is a country located in Central Africa. It is bordered by five countries: Gabon to the west; Cameroon to the northwest; the Central African Republic to the northeast; the Democratic Republic of the Congo to the east and south; and the Angolan exclave of Cabinda to the southwest.
ground_truth: 1960
sub_queries: Christ Bongo >> place of birth Answer: Kinshasa
What country does Kinshasa serve as capital of? Answer: Democratic Republic of the Congo
when did Democratic Republic of the Congo become independent Answer: 1960