Question: When was the country of citizenship of Rafael Ramos declared a U.S. territory?

full_context: Document 1: 51st state: Puerto Rico is designated in its constitution as the "Commonwealth of Puerto Rico". The Constitution of Puerto Rico which became effective in 1952 adopted the name of Estado Libre Asociado (literally translated as "Free Associated State"), officially translated into English as Commonwealth, for its body politic. The island is under the jurisdiction of the Territorial Clause of the U.S. Constitution, which has led to doubts about the finality of the Commonwealth status for Puerto Rico. In addition, all people born in Puerto Rico become citizens of the U.S. at birth (under provisions of the Jones–Shafroth Act in 1917), but citizens residing in Puerto Rico cannot vote for president nor for full members of either house of Congress. Statehood would grant island residents full voting rights at the Federal level. The Puerto Rico Democracy Act (H.R. 2499) was approved on April 29, 2010, by the United States House of Representatives 223–169, but was not approved by the Senate before the end of the 111th Congress. It would have provided for a federally sanctioned self-determination process for the people of Puerto Rico. This act would provide for referendums to be held in Puerto Rico to determine the island's ultimate political status. It had also been introduced in 2007.
Document 2: Puerto Rico: Originally populated by the indigenous Taíno people, the island was claimed in 1493 by Christopher Columbus for Spain during his second voyage. Later it endured invasion attempts from the French, Dutch, and British. Four centuries of Spanish colonial government influenced the island's cultural landscapes with waves of African slaves, Canarian, and Andalusian settlers. In the Spanish Empire, Puerto Rico played a secondary, but strategic role when compared to wealthier colonies like Peru and the mainland parts of New Spain. Spain's distant administrative control continued up to the end of the 19th century, helping to produce a distinctive creole Hispanic culture and language that combined elements from the Native Americans, Africans, and Iberians. In 1898, following the Spanish -- American War, the United States acquired Puerto Rico under the terms of the Treaty of Paris.
Document 3: Rafael Herrera: Rafael Herrera (born January 7, 1945, in Huáscato, Jalisco) is a former boxer from Mexico. He has won the Lineal championship in the Bantamweight division. Born into a large working-class family, Herrera originally wanted to be a priest. In 1971 he married Leticia longtime wife with whom he had two daughters.
Document 4: Rachid Bouaita: Rachid Bouaita (born September 20, 1974 in Maubeuge, Nord) is a retired boxer from France, who competed for his native country at two consecutive Summer Olympics, starting in 1996. His best result was finishing in fifth place after being defeated by Cuba's eventual silver medalist Arnaldo Mesa.
Document 5: Puerto Rico: Originally populated by the indigenous Taíno people, the island was claimed in 1493 by Christopher Columbus for the Crown of Castile during his second voyage. Later it endured invasion attempts from the French, Dutch, and British. Four centuries of Spanish colonial government transformed the island's ethnic, cultural and physical landscapes primarily with waves of African slaves, Canarian, and Andalusian settlers. In the Spanish imperial imagination, Puerto Rico played a secondary, but strategic role when compared to wealthier colonies like Peru and the mainland parts of New Spain. Spain's distant administrative control continued up to the end of the 19th century, helping to produce a distinctive creole Hispanic culture and language that combined elements from the Native Americans, Africans, and Iberians. In 1898, following the Spanish -- American War, the United States acquired Puerto Rico under the terms of the Treaty of Paris.
Document 6: History of Puerto Rico: In 1898, during the Spanish -- American War, Puerto Rico was invaded and subsequently became a possession of the United States. The first years of the 20th century were marked by the struggle to obtain greater democratic rights from the United States. The Foraker Act of 1900, which established a civil government, and the Jones Act of 1917, which made Puerto Ricans U.S. citizens, paved the way for the drafting of Puerto Rico's Constitution and its approval by Congress and Puerto Rican voters in 1952. However, the political status of Puerto Rico, a Commonwealth controlled by the United States, remains an anomaly.
Document 7: Rogelio Marcelo: Rogelio Marcelo García (born June 11, 1965 in Guantánamo) is a retired boxer from Cuba, who competed in the light flyweight (– 48 kg) division during the early 1990s.
Document 8: 51st state: Puerto Rico has been under U.S. sovereignty for over a century when it was ceded to the U.S. by Spain following the end of the Spanish–American War, and Puerto Ricans have been U.S. citizens since 1917. The island's ultimate status has not been determined as of 2012[update], its residents do not have voting representation in their federal government. Puerto Rico has limited representation in the U.S. Congress in the form of a Resident Commissioner, a delegate with limited no voting rights. Like the states, Puerto Rico has self-rule, a republican form of government organized pursuant to a constitution adopted by its people, and a bill of rights.
Document 9: Puerto Rico: Originally populated by the indigenous Taíno people, the island was claimed in 1493 by Christopher Columbus for Spain during his second voyage. Later it endured invasion attempts from the French, Dutch, and British. Four centuries of Spanish colonial government influenced the island's cultural landscapes with waves of African slaves, Canarian, and Andalusian settlers. In the Spanish Empire, Puerto Rico played a secondary, but strategic role when compared to wealthier colonies like Peru and the mainland parts of New Spain. Spain's distant administrative control continued up to the end of the 19th century, helping to produce a distinctive creole Hispanic culture and language that combined elements from the Native Americans, Africans, and Iberians. In 1898, following the Spanish -- American War, the United States acquired Puerto Rico under the terms of the Treaty of Paris. The treaty took effect on April 11, 1899.
Document 10: Puerto Rico: In 1917, the U.S. Congress passed the Jones -- Shafroth Act, popularly called the Jones Act, which granted Puerto Ricans, born on or after, April 25, 1898, U.S. citizenship. Opponents, which included all of the Puerto Rican House of Delegates, who voted unanimously against it, said that the U.S. imposed citizenship in order to draft Puerto Rican men into the army as American entry into World War I became likely.
Document 11: Rafael Ramos (boxer): Rafael "Fito" Ramos (born January 1, 1965) is a retired boxer from Puerto Rico. He competed in the 1984 Summer Olympics and twice won a medal (gold and bronze) at the Pan American Games during his career.
Document 12: Hugo Rafael Soto: Hugo Rafael Soto (born 16 August 1967 in San Fernando del Valle de Catamarca, Argentina) is a former professional boxer.
Document 13: Bernardo Piñango: José Bernardo Piñango (born February 9, 1960 in Caracas) is a retired professional boxer from Venezuela who held the WBA (twice), "The Ring" and lineal bantamweight titles. As an amateur boxer, he won a silver medal in the bantamweight division (-54 kg) at the 1980 Summer Olympics in Moscow. In the final he lost to Cuba's Juan Hernández on points (0-5).
Document 14: Puerto Rico: Originally populated by the indigenous Taíno people, the island was claimed in 1493 by Christopher Columbus for the Crown of Castile during his second voyage. Later it endured invasion attempts from the French, Dutch, and British. Four centuries of Spanish colonial government transformed the island's ethnic, cultural and physical landscapes primarily with waves of African slaves, and Canarian, and Andalusian settlers. In the Spanish imperial imagination, Puerto Rico played a secondary, but strategic role when compared to wealthier colonies like Peru and the mainland parts of New Spain. Spain's distant administrative control continued up to the end of the 19th century, helping to produce a distinctive creole Hispanic culture and language that combined elements from the Native Americans, Africans, and Iberians. In 1898, following the Spanish -- American War, the United States acquired Puerto Rico along with other Spanish colonies under the terms of the Treaty of Paris.
Document 15: Hipólito Ramos: Hipólito Ramos Martínez (born January 30, 1956) is a retired boxer from Cuba, who won the silver medal in the Light Flyweight division (-48 kg) at the 1980 Summer Olympics in Moscow. In the final he lost to Shamil Sabirov of the Soviet Union on points (2-3).
ground_truth: 1898
sub_queries: Rafael Ramos >> country of citizenship Answer: Puerto Rico
when was Puerto Rico declared a us territory Answer: 1898