paragraph_text: The separation of Panama from Colombia was formalized on 3 November 1903, with the establishment of the Republic of Panama. From the Independence of Panama from Spain in 1821, Panama had simultaneously declared independence from Spain and joined itself to the confederation of Gran Colombia through the Independence Act of Panama. Panama was always tenuously connected to the rest of the country to the south, owing to its remoteness from the government in Bogotá and lack of a practical overland connection to the rest of Gran Colombia. In 1840 - 1841, a short - lived independent republic was established under Tomás de Herrera. After rejoining Colombia following a 13 - month independence, it remained a province which saw frequent rebellious flare - ups, notably the Panama crisis of 1885, which saw the intervention of the United States Navy.

paragraph_text: The Eighty Years' War (; ) or Dutch War of Independence (1568–1648) was a revolt of the Seventeen Provinces of what are today the Netherlands, Belgium, and Luxembourg against Philip II of Spain, the sovereign of the Habsburg Netherlands. After the initial stages, Philip II deployed his armies and regained control over most of the rebelling provinces. Under the leadership of the exiled William the Silent, the northern provinces continued their resistance. They eventually were able to oust the Habsburg armies, and in 1581 they established the Republic of the Seven United Netherlands. The war continued in other areas, although the heartland of the republic was no longer threatened; this included the beginnings of the Dutch Colonial Empire, which at the time were conceived as carrying overseas the war with Spain. The Dutch Republic was recognized by Spain and the major European powers in 1609 at the start of the Twelve Years' Truce. Hostilities broke out again around 1619, as part of the broader Thirty Years' War. An end was reached in 1648 with the Peace of Münster (a treaty part of the Peace of Westphalia), when the Dutch Republic was definitively recognised as an independent country no longer part of the Holy Roman Empire. The Peace of Münster is sometimes considered the beginning of the Dutch Golden Age.

paragraph_text: President McKinley signed a joint Congressional resolution demanding Spanish withdrawal and authorizing the President to use military force to help Cuba gain independence on April 20, 1898.. In response, Spain severed diplomatic relations with the United States on April 21. On the same day, the U.S. Navy began a blockade of Cuba. On April 23, Spain stated that it would declare war if the US forces invaded its territory. On April 25, the U.S. Congress declared that a state of war between the U.S. and Spain had de facto existed since April 21, the day the blockade of Cuba had begun. The United States sent an ultimatum to Spain demanding that it surrender control of Cuba, but due to Spain not replying soon enough, the United States had assumed Spain had ignored the ultimatum and continued to occupy Cuba.

paragraph_text: British America gained large amounts of new territory following the Treaty of Paris (1763) which ended British involvement in the Seven Years' War. At the start of the American War of Independence in 1775, the British Empire included twenty colonies north and east of New Spain (present - day areas of Mexico and the Western United States). East and West Florida were ceded to Spain in the Treaty of Paris (1783) which ended the American Revolution, and then ceded by Spain to the United States in 1819. The remaining continental colonies of British North America formed the Dominion of Canada by uniting between 1867 and 1873. The Dominion of Newfoundland joined Canada in 1949.

paragraph_text: The Monroe Doctrine was a United States policy of opposing European colonialism in the Americas beginning in 1823. It stated that further efforts by European nations to take control of any independent state in North or South America would be viewed as ``the manifestation of an unfriendly disposition toward the United States. ''At the same time, the doctrine noted that the U.S. would recognize and not interfere with existing European colonies nor meddle in the internal concerns of European countries. The Doctrine was issued on December 2, 1823 at a time when nearly all Latin American colonies of Spain and Portugal had achieved, or were at the point of gaining, independence from the Portuguese and Spanish Empires.

paragraph_text: María Peláez Navarrete (born 13 November 1977 in Málaga, Andalusia) is a former butterfly swimmer from Spain, who competed at five consecutive Summer Olympics for her native country, starting in 1992. She won the silver medal in the 200 m butterfly at the 1999 European Aquatics Championships in Istanbul, Turkey, after gaining the title in the same event, two years earlier at the European Championships in Seville, Spain.

paragraph_text: The Rohingya people have consistently faced human rights abuses by the Burmese regime that has refused to acknowledge them as Burmese citizens (despite some of them having lived in Burma for over three generations)—the Rohingya have been denied Burmese citizenship since the enactment of a 1982 citizenship law. The law created three categories of citizenship: citizenship, associate citizenship, and naturalised citizenship. Citizenship is given to those who belong to one of the national races such as Kachin, Kayah (Karenni), Karen, Chin, Burman, Mon, Rakhine, Shan, Kaman, or Zerbadee. Associate citizenship is given to those who cannot prove their ancestors settled in Myanmar before 1823, but can prove they have one grandparent, or pre-1823 ancestor, who was a citizen of another country, as well as people who applied for citizenship in 1948 and qualified then by those laws. Naturalized citizenship is only given to those who have at least one parent with one of these types of Burmese citizenship or can provide "conclusive evidence" that their parents entered and resided in Burma prior to independence in 1948. The Burmese regime has attempted to forcibly expel Rohingya and bring in non-Rohingyas to replace them—this policy has resulted in the expulsion of approximately half of the 800,000 Rohingya from Burma, while the Rohingya people have been described as "among the world's least wanted" and "one of the world's most persecuted minorities." But the origin of ‘most persecuted minority’ statement is unclear.

paragraph_text: The two countries eventually signed an agreement making the islands an Anglo-French condominium that divided the New Hebrides into two separate communities: one Anglophone and one Francophone. This divide continues even after independence, with schools teaching in either one language or the other, and with different political parties. The condominium lasted from 1906 until 1980, when the New Hebrides gained their independence as the Republic of Vanuatu.

paragraph_text: Los Momentos ("The Moments") is the sixth studio album by Mexican recording artist Julieta Venegas, was released 19 March 2013 by Sony Music Mexico. The first single from "Los Momentos" is "Tuve para dar". This album features collaborations with Cecilia Bastida, Natalia Lafourcade, Ana Tijoux and Rubén Albarrán (vocalist from Café Tacvba).

paragraph_text: ¡Mamma Mia! the tenth album by Mexican singer Verónica Castro, It was released in 1988. "Bienvenidos Aquí está" is the theme to Verónica Castro's late night show of the same name. The song "Bienvenidos Aquí está" was also sung in Italian by Gino Renni titled "Canzone esagerata (c’è chi c’ha)" as well as "Decir Adios" sung by Pupo - Fiordaliso titled "La Vita È Molto Di Più". She also won the "Antorcha de Plata" from Viña del Mar en 1989.

paragraph_text: The island of Cuba was inhabited by various Mesoamerican cultures prior to the arrival of the Italian explorer Christopher Columbus in 1492. After Columbus' arrival, Cuba became a Spanish colony, ruled by a Spanish governor in Havana. In 1762, Havana was briefly occupied by Great Britain, before being returned to Spain in exchange for Florida. A series of rebellions during the 19th century failed to end Spanish rule. However, the Spanish -- American War resulted in a Spanish withdrawal from the island in 1898, and following three - and - a-half years of subsequent US military rule, Cuba gained formal independence in 1902.

paragraph_text: Pursuant to this power, Congress in 1790 passed the first naturalization law for the United States, the Naturalization Act of 1790. The law enabled those who had resided in the country for two years and had kept their current state of residence for a year to apply for citizenship. However it restricted naturalization to ``free white persons ''of`` good moral character''.

paragraph_text: Zoe is a 3 - year - old orange female monster on Sesame Street, originally performed by Fran Brill. She was designed in her color to complement Elmo, who was gaining popularity at her introduction in 1993.

paragraph_text: After Pakistan gained its independence in August 1947, Iran was the first country to recognize its sovereign status. Pakistan's relations with Iran grew strained at times due to sectarian tensions, as Pakistani Shias claimed that they were being discriminated against under the Pakistani government's Islamisation programme.

paragraph_text: The island of Cuba was inhabited by various Mesoamerican cultures prior to the arrival of the Spanish explorer Christopher Columbus in 1492. After Columbus' arrival, Cuba became a Spanish colony, ruled by a Spanish governor in Havana. In 1762, Havana was briefly occupied by Great Britain, before being returned to Spain in exchange for Florida. A series of rebellions during the 19th century failed to end Spanish rule. However, the Spanish -- American War resulted in a Spanish withdrawal from the island in 1898, and following three - and - a-half years of subsequent US military rule, Cuba gained formal independence in 1902.

paragraph_text: On May 6, 1957, Ghana (formerly Gold Coast) became the first sub-Saharan African country to gain its independence from European colonization in the twentieth century.

paragraph_text: On 6 March 1957, Ghana (formerly the Gold Coast) became the first sub-Saharan African country to gain its independence from European colonization in the twentieth century.

paragraph_text: Jesuit missionary Eusebio Francisco Kino visited the Santa Cruz River valley in 1692, and founded the Mission San Xavier del Bac in 1700 about 7 mi (11 km) upstream from the site of the settlement of Tucson. A separate Convento settlement was founded downstream along the Santa Cruz River, near the base of what is now "A" mountain. Hugo O'Conor, the founding father of the city of Tucson, Arizona authorized the construction of a military fort in that location, Presidio San Agustín del Tucsón, on August 20, 1775 (near the present downtown Pima County Courthouse). During the Spanish period of the presidio, attacks such as the Second Battle of Tucson were repeatedly mounted by Apaches. Eventually the town came to be called "Tucson" and became a part of Sonora after Mexico gained independence from Spain in 1821.

paragraph_text: Portuguese natives comprise a very small percentage of Guinea-Bissauans. After Guinea-Bissau gained independence, most of the Portuguese nationals left the country. The country has a tiny Chinese population. These include traders and merchants of mixed Portuguese and Chinese ancestry from Macau, a former Asian Portuguese colony.

paragraph_text: Aquí ("Here") is the title of the debut studio album by Mexican singer-songwriter Julieta Venegas, released on March 24, 1997. It was well received by the public. The two singles released were "De Mis Pasos" and "Cómo Sé".

Question: In what year did Aqui's performer's country of citizenship gain independence from Spain?
Answer: 1821